Βαλουγεώργης Δημήτρης
Ομότιμος Καθηγητής,
Αναλυτικές και Υπολογιστικές Μέθοδοι Μεσοκλίμακας σε Φαινόμενα Ροής και Μεταφοράς
☎ +30 24210 74058
✉ diva (at) mie.uth.gr
✉ diva (at) mie.uth.gr
ΣΠΟΥΔΕΣ – ΣΥΝΤΟΜΟ ΒΙΟΓΡΑΦΙΚΟ
Ο Δημήτρης Βαλουγεώργης αποφοίτησε με το δίπλωμα του μηχανολόγου μηχανικού από το Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης το 1980, και στη συνέχεια πήρε τα διπλώματα M.S. και Ph.D. in Mechanical Engineering από το Virginia Polytechnic Institute and State University (VPI&SU), το 1982 και 1985 αντίστοιχα.
Στη διάρκεια των μεταπτυχιακών του σπουδών εργάστηκε ως Βοηθός Έρευνας στις περιοχές της πειραματικής καύσης (1981-1982) και της κινητικής θεωρίας αερίων (1982-85). Από το 1985 έως το 1987 διατέλεσε Εντεταλμένος Επίκουρος Καθηγητής στο Τμήμα Εφαρμοσμένων Μαθηματικών του VPI&SU, ασκώντας παράλληλα ερευνητική δραστηριότητα στο Κέντρο Μαθηματικής Φυσικής του ιδίου πανεπιστημίου. Στο τέλος του 1987 επέστρεψε στην Ελλάδα, και αφού ολοκλήρωσε τις στρατιωτικές του υποχρεώσεις, εργάστηκε στα Ελληνικά Πετρέλαια (πρώην ΕΚΟ) σαν Μηχανικός Νέων Έργων στο βιομηχανικό συγκρότημα της Θεσσαλονίκης από το 1989 έως το 1998. Επίσης από το 1988 έως το 1992 είχε ερευνητική και διδακτική συνεργασία, σαν Ειδικός Επιστήμων, με το Τμήμα Μηχανολόγων Μηχανικών του Αριστοτελείου Πανεπιστημίου Θεσσαλονίκης (ΑΠΘ).
Από τον Σεπτέμβριο του 1998 εργάζεται στο Τμήμα Μηχανολόγων Μηχανικών του Πανεπιστημίου Θεσσαλίας (ΠΘ). Είναι Καθηγητής Αναλυτικών και Υπολογιστικών Μεθόδων Μεσοκλίμακας σε Φαινόμενα Ροής και Μεταφοράς και μέλος του Εργαστηρίου Φυσικών και Χημικών Διεργασιών.
Είναι μέλος του Τεχνικού Επιμελητηρίου Ελλάδας (ΤΕΕ), του Συλλόγου Διπλωματούχων Μηχανολόγων – Ηλεκτρολόγων Μηχανικών, της Ελληνικής Εταιρίας Υπολογιστικής Μηχανικής (ΕΛΕΤΥΜ) και ήταν μέλος των διεθνών οργανισμών American Society of Mechanical Engineers (ASME), American Mathematical Society (AMS), Society of Industrial and Applied Mathematics (SIAM).
Τα ερευνητικά του ενδιαφέροντα περιλαμβάνουν την αναλυτική και υπολογιστική μελέτη των φαινομένων μεταφοράς, της κινητικής θεωρίας αερίων, της δυναμικής αραιοποιημένων αερίων (rarefied gas dynamics), των ολοκληρωτικών-διαφορικών εξισώσεων (εξίσωση Boltzmann, και κινητικά μοντέλα). Οι εφαρμογές της έρευνάς του εστιάζονται στην μικρορευστοδυναμική, σε μικρο-ηλεκτρο-μηχανολογικά συστήματα (MEMS), στην τεχνολογία κενού και στα συστήματα απαγωγής αερίων σε αντιδραστήρες σύντηξης. Επίσης έχει ασχοληθεί με το φαινόμενο του «sloshing», με τον ρευστοδυναμικό σχεδιασμό και βελτιστοποίηση δικτύων σωληνώσεων και με ειδικά θέματα υπολογιστικής ρευστοδυναμικής. Η έρευνά του χρηματοδοτείται από το Ευρωπαϊκό Πρόγραμμα Σύντηξης (EUROfusion) και από άλλα ευρωπαϊκά ερευνητικά προγράμματα.
Είναι συγγραφέας 100 περίπου επιστημονικών άρθρων σε έγκριτα διεθνή επιστημονικά περιοδικά και κριτής σε πολλά περιοδικά και συνέδρια στα γνωστικά αντικείμενα της μηχανικής ρευστών και φαινομένων μεταφοράς. Είναι μέλος Επιστημονικών Επιτροπών Διεθνών Συνεδρίων συμπεριλαμβανομένων των Συνεδρίων “European Conference of Microfluidics” και “European Vacuum Conference” και συν-διοργανωτής του συνεδρίου “European Conference of Non-Equilibrium Gas Flows” που οργανώνεται κάθε 3 χρόνια. Επίσης, είναι μέλος της Εκδοτικής Επιτροπής του περιοδικού VACUUM και της Διοικούσας Επιτροπής του Εθνικού Προγράμματος Ελεγχόμενης Θερμοπυρηνικής Σύντηξης. Έχει διδάξει στα πανεπιστήμια VPI&SU, ΑΠΘ και ΠΘ πτυχιακά και μεταπτυχιακά μαθήματα σε εφαρμοσμένα μαθηματικά, υπολογιστικές μεθόδους, υπολογιστική ρευστοδυναμική, μετάδοση θερμότητας, κινητική θεωρία και μικρορευστοδυναμική.
Profiles of Dimitris Valougeorgis: Google Scholar
Άρθρα σε Περιοδικά
- D. Angelis, F. Sofos, S. Misdanitis, C. Dritselis, T. Karakasidis, D. Valougeorgis, V. Haak, G. Schlisio, D. Naujoks and W7-X Team, “Prediction of neutral gas pressure in Wendelstein 7-X: Statistical Analysis and Machine Learning”, Physics of Plasmas, 33, 012501, (2026).
- D. Angelis, F. Sofos, S. Misdanitis, C. Dritselis, T. Karakasidis, D. Valougeorgis, V. Haak, G. Schlisio, D. Naujoks and W7-X Team, “Data driven prediction of the neutral gas pressure in terms of the main plasma parameters for partially attached conditions in Wendelstein 7-X via symbolic regression”, Plasma Physics and Controlled Fusion, 67, 075004, (2025).
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S. Misdanitis, N. Vasileiadis and D. Valougeorgis, “Machine Learning Aided Simulation of Gas Distribution Systems Operating under any Vacuum Conditions, Vacuum, 234, 114045, (2025).
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Th. Basdanis, G. Tatsios and D. Valougeorgis, “Sensitivity analysis of the Cercignani – Lampis accommodation coefficients in prototype rarefied gas flow and heat transfer problems via the Monte Carlo method”, European Journal of Mechanics B/Fluids, 107, 80-94, (2024).
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F. Sofos, C. Dritselis, S. Misdanitis, T. Karakasidis and D. Valougeorgis, “Computation of flow rates in rarefied gas flow through circular tubes via machine learning techniques”, Microfluidics and Nanofluidics, 27:85 (2023).
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Th. Basdanis, D. Valougeorgis and F. Sharipov, “Viscous and thermal velocity slip coefficients via the linearized Boltzmann equation with ab initio potential”, Microfluidics and Nanofluidics, 27:75 (2023).
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Th. Basdanis, G. Tatsios and D. Valougeorgis, “Gas-surface interaction in rarefied gas flows through long capillaries via the linearized Boltzmann equation with various boundary conditions”, Vacuum, 202, 111152, (2022).
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N. Vasileiadis and D. Valougeorgis, “Uncertainty propagation analysis of the computed ITER torus effective pumping speed during the dwell phase“, Vacuum, 203, 111317 (2022).
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Th. Basdanis, A. Tsimpoukis and D. Valougeorgis, “Effect of constant and variable adsorption half-cycle times on the performance of solar dual-bed adsorption cooling systems”, Renewable Energy, 164, 362-374, (2021).
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G. Tatsios, A. Tsimboukis and D. Valougeorgis, “The half-range moment method in harmonically oscillating rarefied gas flows”, Fluids, 6, 17, (2021).
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N. Vasileiadis and D. Valougeorgis, “Pressure and temperature driven fully-developed rarefied gas flow in a channel with uniform injection/suction through its permeable walls”, Vacuum, Special Issue in the honour of Prof. John S. Colligon, 188, 110155, (2021).
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A. Tsimpoukis, S. Naris and D. Valougeorgis, “Oscillatory pressure-driven rarefied binary gas flow between parallel plates”, Physical Review E, 103, 033103, (2021).
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A. Tsimpoukis and D. Valougeorgis, “Oscillatory rarefied gas flow with arbitrary frequency in the comb finger elements”, Sensors and Actuators A: Physical, 331, 112997, (2021).
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Th. Basdanis, G. Tatsios and D. Valougeorgis, “Human thermophysiological models: Quantification of uncertainty in the computed quantities of the passive system due to uncertainties in the control equations of the active system via the Monte Carlo Method”, Journal of Thermal Biology, 100, 103045, (2021).
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G. Tatsios and D. Valougeorgis, “Uncertainty propagation analysis of the computed flow rates and pressure differences in rarefied pressure and temperature driven gas flows through long capillaries”, European Journal of Mechanics /B Fluids, 79, 190-201, (2020).
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N. Vasileiadis and D. Valougeorgis, “Modeling of time-dependent gas pumping networks in the whole range of the Knudsen number: Simulations of the ITER dwell phase”, Fusion Engineering and Design, 151, 111383, (2020).
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G. López Quesada, G. Tatsios, D. Valougeorgis, M. Rojas-Cárdenas, L. Baldas, C. Barrot and S. Colin, “Thermally driven pumps and diodes in multistage assemblies consisting of microchannels with converging, diverging and uniform rectangular cross sections”, Microfluidics and Nanofluidics, 24:54, (2020).
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S. Naris, N. Vasileiadis, D. Valougeorgis, A. S. Hashad and W. Sabuga, “Computation of the effective area and associated uncertainties of non-rotating piston gauges FPG and FRS”, Metrologia, 55, 015005, (2019).
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G. Tatsios, D. Valougeorgis and S. Stefanov, “Reconsideration of the implicit boundary conditions in pressure driven rarefied gas flows through capillaries”, Vacuum, 160, 114-122, (2019).
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G. López Quesada, G. Tatsios, D. Valougeorgis, M. Rojas-Cárdenas, L. Baldas, C. Barrot and S. Colin, “Design guidelines for thermally driven micro-pumps of different architectures based on target applications”, Micromachines, 10, 249, (2019).
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S. Meskos, S. Stefanov and D. Valougeorgis, “Gas mixing and final mixture composition control in simple geometry micro-mixers via DSMC analysis”, Micromachines, 10, 178, , (2019).
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A. Tsimpoukis, N. Vasileiadis, G. Tatsios and D. Valougeorgis, “Nonlinear oscillatory fully-developed rarefied gas flow in plane geometry“, Physics of Fluids Special Topic: DSMC – The Legacy of Graeme A. Bird, 31, 067108, (2019).
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A. Tsimpoukis and D. Valougeorgis, “Rarefied gas flow in a circular tube due to oscillating pressure gradient“, Microfluidics and Nanofluidics, 22:5, (2018).
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A. Tsimpoukis and D. Valougeorgis, “Pulsatile pressure driven rarefied gas flow in long rectangular ducts”, Physics of Fluids, 30, 047104, (2018).
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D. Valougeorgis, N. Vasileiadis and V. Titarev, “Range of validity of linear kinetic modeling in pressure driven rarefied gas flows through short tubes“, European Journal of Mechanics B/Fluids, 64, 2-7, (2017).
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C. Tantos and D. Valougeorgis, “Conductive heat transfer in rarefied binary gas mixtures confined between parallel plates based on kinetic modeling“, International Journal of Heat and Mass Transfer, 117, 846-860, (2017).
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G. Tatsios, G. Lopez Quesada, M. Rojas Cardenas, L. Baldas, S. Colin and D. Valougeorgis, “Computational investigation and parametrization of the pumping effect in temperature driven flows through long tapered channels”, Microfluidics and Nanofluidics, 21:99, (2017).
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C. Tantos, S. Naris and D. Valougeorgis, “Gas flow towards an adsorbing planar wall subject to partial gas-surface thermal accommodation”, Vacuum, 125, 65-74, (2016).
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G. Tatsios, M. Vargas, D. Valougeorgis and S. Stefanov, “Non-equilibrium gas flow and heat transfer in a heated square microcavity“, Heat Transfer Engineering, 37 (13-14), 1085-1095, (2016).
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C. Tantos, G. P. Ghiroldi, D. Valougeorgis and A. Frezzotti, “Effect of vibrational degrees of freedom on the heat transfer in polyatomic gases confined between parallel plates”, International Journal of Heat and Mass Transfer, 102, 162-173, (2016).
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D. Valougeorgis, M. Vargas and S. Naris, “Analysis and guidelines on gas separation, conductance and equivalent single gas approach for binary gas mixture expansion through a short tube into vacuum”, Vacuum, 128, 1-8, (2016).
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N. Vasileiadis, G. Tatsios, S. Misdanitis and D. Valougeorgis, “Modeling of complex gas distribution systems operating under any vacuum conditions: Simulations of the ITER divertor pumping system”,Fusion Engineering and Design, 103, 125-135, (2016).
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G. Tatsios, S. Stefanov and D. Valougeorgis, “Predicting the Knudsen paradox in long capillaries by decomposing the flow into ballistic and collision parts”, Physical Review E, 91, 061001(R), (2015)
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C. Tantos, D. Valougeorgis and A. Frezzotti, “Conductive heat transfer in rarefied polyatomic gases confined between parallel plates via various kinetic models and the DSMC method”, International Journal of Heat and Mass Transfer, 88, 636-651, (2015).
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M. Vargas, S. Naris, D. Valougeorgis, S. Pantazis and K. Jousten, “Hybrid modeling of time-dependent rarefied gas expansion“, Journal of Vacuum Science and Technology, 32 (2), 021602, (2014).
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S. Pantazis, D. Valougeorgis and F. Sharipov, “End corrections for rarefied gas flows through circular tubes of finite length“, Vacuum, 101, 306-312, (2014).
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M. Vargas, G. Tatsios, D. Valougeorgis and S. Stefanov, “Rarefied gas flow in a rectangular enclosure induced by non-isothermal walls“, Physics of Fluids, 26, 057101, (2014).
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S. Naris, C. Tantos and D. Valougeorgis, “Kinetic modeling of a tapered Holweck pump“, Vacuum, 109, 341-348, (2014).
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C. Tantos, D. Valougeorgis, A. Frezzotti, M. Pannuzzo and G. L. Morini, “Conductive heat transfer in a rarefied polyatomic gas confined between coaxial cylinders“, International Journal of Heat and Mass Transfer, 79, 378-389, (2014).
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M. Vargas, S. Naris, D. Valougeorgis, S. Pantazis and K. Jousten, “Time-dependent rarefied gas flow of single gases and binary gas mixtures into vacuum“, Vacuum, 109, 385-396, (2014).
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S. Pantazis and D. Valougeorgis, “Rarefied gas flow through a cylindrical tube due to a small pressure difference“, European Journal of Mechanics B/Fluids, 38, 114-127, (2013).
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S. Pantazis, S. Naris, C. Tantos, D. Valougeorgis, J. Andre, F. Millet and J.P. Perin, “Nonlinear vacuum gas flow through a short tube due to to pressure and temperature gradients”, Fusion Engineering and Design, 88, 2384-2387, (2013).
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S. Misdanitis and D. Valougeorgis, “Modeling of ITER related vacuum gas pumping distribution systems”, Fusion Engineering and Design, 88, 2352-2356, (2013).
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S. Pantazis, D. Valougeorgis and F. Sharipov, “End corrections for rarefied gas flows through capillaries of finite length“, Vacuum, 97, 26-29, (2013).
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S. Misdanitis, S. Pantazis and D. Valougeorgis, “Pressure driven rarefied gas flow through a slit and an orifice“, Vacuum, 86, 1701-1708, (2012).
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K. Ritos, J. Lihnaropoulos, S. Naris and D. Valougeorgis, “Pressure and temperature driven flows through triangular and trapezoidal microchannels“, Heat Transfer Engineering, 32, 1101-1107, (2011).
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S. Pantazis, S. Varoutis, Chr. Day and D. Valougeorgis, “Gas-surface scattering effect on vacuum gas flows through rectangular channels“, Vacuum, 85, 1161-1164, (2011).
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J. Lihnaropoulos and D. Valougeorgis, “Unsteady vacuum gas flow in cylindrical tubes“, Fusion Engineering and Design, 86, 2139-2142, (2011).
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S. Misdanitis and D. Valougeorgis, “Design of steady-state isothermal gas distribution systems consisting of long tubes in the whole range of the Knudsen number“, Journal of Vacuum Technology and Science A, 29, 061602.1-7, (2011).
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S. Pantazis and D. Valougeorgis, “Nonlinear heat transfer through rarefied gases between coaxial cylindrical surfaces at different temperatures”, European Journal of Mechanics B/Fluids, 29, 494-509, (2010).
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L. Szalmas and D. Valougeorgis, “A fast iterative model for discrete velocity calculations on triangular grids”, Journal of Computational Physics, 229, 4315-4326, (2010).
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L. Szalmas and D. Valougeorgis, “Rarefied gas flow of binary mixtures through long channels with triangular and trapezoidal cross sections”, Microfluidics and Nanofluidics, 9, 471-487, (2010).
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L. Szalmas, J. Pitakarnnop, S. Geoffroy, S. Colin and D. Valougeorgis, “Comparative study between computational and experimental results for binary rarefied gas flows through long microchannels”, Microfluidics and Nanofluidics, 9, 1103-1114, (2010).
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J. Pitakarnnop, S. Varoutis, D. Valougeorgis, S. Geoffroy, L. Baldas, S. Colin, “A novel experimental setup for gas microflows”, Microfluidics and Nanofluidics, 8 (1), 57-72, (2010).
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S. Varoutis, V. Hauer, C. Day, S. Pantazis and D.Valougeorgis, “Experimental and numerical investigation in flow configurations related to the vacuum systems of fusion reactors“, Fusion Engineering and Design, 85, 1798-1802 (2010).
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S. Varoutis, S. Naris, V. Hauer, C. Day and D. Valougeorgis, “Experimental and computational investigation of gas flows through long channels of various cross sections in the whole range of the Knudsen number”, Journal of Vacuum Science and Technology – A, 27 (1), 89-100, (2009).
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S. Varoutis, D. Valougeorgis and F. Sharipov, “Gas flow through tubes of finite length over the whole range of rarefaction for various pressure drop ratios”, Journal of Vacuum Science and Technology – A, 27 (6), 1377-1391, (2009).
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G. Breyiannis, S. Varoutis and D. Valougeorgis, “Rarefied gas flow in concentric annular tube: Estimation of the Poiseuille number and the exact hydraulic diameter”, European Journal of Mechanics B/Fluids, 27, 609-622, (2008).
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S. Varoutis, D. Valougeorgis and F. Sharipov, “A study of the integro-moment method in multi-dimensional non-equilibrium flows subject to boundary induced discontinuities”, Journal of Computational Physics, 227, 6272-6287, (2008).
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S. Varouti, O. Sazhin, D. Valougeorgis and F. Sharipov, “Flow of a rarefied gas into vacuum through a tube of finite length”, Journal of Vacuum Science and Technology – A, 26 (2), 228-238, (2008)
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S. Naris and D. Valougeorgis, “Rarefied gas flow in a triangular duct based on a boundary fitted lattice”, European Journal of Mechanics B/Fluids, 27, 810-822, (2008).
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D. Valougeorgis, “Results on the viscous slip coefficient for binary gas mixtures”, International Journal of Heat and Technology, 26 (1), 117-123, (2008).
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J. Lihnaropoulos, S. Naris and D. Valougeorgis, “Formulation and stability analysis of rapidly convergent iteration schemes for 2D discrete velocity calculations,” Transport Theory and Statistical Physics, 36(4-6), 513-528, (2007).
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D. Valougeorgis, “A study on the friction factor of a rarefied gas flow in a circular tube”, Physics of Fluids, 19 (9), 091702.1-091702.4, (2007).
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S. Naris and D. Valougeorgis, “Boundary driven non-equilibrium gas flow in a grooved channel via kinetic theory”, Physics of Fluids, 19 (6), 067103.1-067103.15, (2007).
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D. Valougeorgis, “Results on the viscous and slip coefficients for binary gas mixtures”, International Journal of Heat and Technology, 26 (1), 117-123, (2008).
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S. Naris and D. Valougeorgis, “Shear driven micro-flows of gaseous mixtures,” Sensor Letters, 4, 46-52, (2006).
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G. Breyiannis and D. Valougeorgis, “Lattice kinetic simulations in 3D MHD turbulence,” Computer and Fluids, 35, 8-9, 920-925, (2006).
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S. Naris, D. Valougeorgis, D. Kalempa and F. Sharipov, “Flow of gaseous mixtures through rectangular microchannels driven by pressure, temperature and concentration gradients”, Physics of Fluids, 17 (10), 100607.1-100607-12, (2005).
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S. Naris and D. Valougeorgis, “The driven cavity flow over the whole range of the Knudsen number,” Physics of Fluids, 17 (9), 097106.1-097106.12, (2005).
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G. Breyiannis and D. Valougeorgis, “Lattice Boltzmann simulations in 3-D magnetohydrodynamics,” Physical Review E, 69, 065702.1-065702.4, (2004).
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C. E. Siewert and D. Valougeorgis, “Concise and accurate solutions to half-space binary-gas flow problems defined by the McCormack model and specular-diffuse wall conditions,” European Journal of Mechanics B/Fluids, 23, 709-726, (2004).
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S. Naris, D. Valougeorgis, D. Kalempa and F. Sharipov, “Gaseous mixture flow between two parallel plates in the whole range of the gas rarefaction,” Physica A: Statistical Mechanics and its Applications, 336, 3-4, 294-318, (2004).
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Papaspyrou S., Valougeorgis D. and Karamanos, S. A., “Sloshing effects in half-full horizontal cylindrical vessels under longitudinal excitation”, Journal of Applied Mechanics, ASME, 71, 2, 255-265, (2004).
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S. Papaspyrou, S. A. Karamanos and D. Valougeorgis, “Response of half-full horizontal cylinders under transverse excitation,” Journal of Fluids and Structures, 19, 7, 985-1003, (2004).
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C.E. Siewert and D. Valougeorgis, “The McCormack model: Channel flow of a binary gas mixture driven by temperature, pressure and concentration gradients”, European Journal of Mechanics B/Fluids, 23, 645-664, (2004).
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S. Naris, D. Valougeorgis, F. Sharipov and D. Kalempa, “Discrete velocity modelling of gaseous mixture flows in MEMS,” Superlattices and Microstructures, 35, 3-6, 629-643, (2004).
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Z. Poulakis, D. Valougeorgis and C. Papadimitriou, “Leakage Detection in Water Pipe Networks Using a Bayesian Probabilistic Framework“, Probabilistic Engineering Mechanics, 18, 4, 315-327, (2003).
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D. Valougeorgis, “An analytical solution of the S-model kinetic equations,” Journal of Applied Mathematics and Physics (ZAMP), 54, 112-124, (2003).
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D. Valougeorgis and S. Naris, “Acceleration schemes of the discrete velocity method: Gaseous flows in rectangular microchannels,” SIAM Journal of Scientific Computing, 25, 2, 534-552, (2003).
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S. Papaspyrou, D. Valougeorgis, and S. A. Karamanos, “Refined solutions of externally induced sloshing in half-full spherical containers,” Journal of Engineering Mechanics, ASCE, 129, 12, 1369-1379, (2003).
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D. Valougeorgis and S. Naris “Analytical Lattice Boltzmann solutions for thermal flow problems,” Transport Theory and Statistical Physics, 32, 5-7, 639-650, (2003).
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C. E. Siewert and D. Valougeorgis, “An analytical discrete-ordinates solution of the S-model kinetic equations for flow in a cylindrical tube,” Journal of Quantitative Spectroscopy and Radiative Transfer, 72, 531-550, (2002).
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G. Theodoridis, V. Karayiannis and D. Valougeorgis, “Numerical prediction of dispersion characteristics in an urban area based on grid refinement and various turbulence models”, Water Air and Soil Pollution: Focus, 2, 525-539, (2002).
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C. E. Siewert and D. Valougeorgis, “The temperature jump problem for a mixture of two gases,” Journal of Quantitative Spectroscopy and Radiative Transfer, 70, 307-319, (2001).
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M. Ballas and D. Valougeorgis, “Surface tension effects on the nonlinear behavior of long waves in a two layer flow,” Computational Mechanics, 27, 3, 265-269, (2001).
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G. Breyiannis, D. Valougeorgis, V. Bontozoglou and A. Goulas, “An inviscid investigation of the initiation of roll waves in horizontal gas-liquid flows,” International Journal of Multiphase Flow. 20, 957-967, (1994).
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G. Breyiannis, D. Valougeorgis, V. Bontozoglou and A. Goulas, “Large-amplitude interfacial waves on a linear shear flow in the presence of a current,” Journal of Fluid Mechanics, 249, 499-519, (1993).
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D. Valougeorgis, “Boundary treatment of the diffusion synthetic acceleration method for fixed-source discrete-ordinates problems in x-y geometry,” Nuclear Science and Engineering, 100, 142-148, (1988).
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D. Valougeorgis, M. Williams and E. W. Larsen, “Stability analysis of synthetic acceleration methods with anisotropic scattering,” Nuclear Science and Engineering, 99, 91-98, (1988).
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D. Valougeorgis, “Couette flow of a binary gas mixture,” Physics of Fluids, 31, 521-524, (1988).
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D. Valougeorgis, “A concise solution for shear flow problems in cylindrical geometry,” Journal of Applied Mathematics and Physics (ZAMP), 37, 797-800, (1986).
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D. Valougeorgis and J. R. Thomas, “Exact numerical results for Poiseuille and thermal creep flow in a cylindrical tube,” Physics of Fluids, 29, 423-429, (1986).
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J. R. Thomas and D. Valougeorgis, “The FN method in kinetic theory: II. Heat transfer between parallel plates,” Transport Theory and Statistical Physics, 14, 497-512, (1985).
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J. R. Thomas and D. Valougeorgis, “The FN method in kinetic theory: I. Half space problems,” Transport Theory and Statistical Physics, 14, 485-496, (1985).
Άρθρα σε Πρακτικά Συνεδρίων
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A. Tsimpoukis, S. Naris and D. Valougeorgis, “Oscillatory rarefied binary gas flows in long capillaries”, The Legacy of Carlo Cercignani: from Kinetic Theory to Turbulence Modeling, Milano, Italy, 25-29 May, (2021).
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C. Tantos and D. Valougeorgi, “Parametric study on propulsion performance of micro-tubes”, 6th European Conference for Aeronautics and Space Sciences, Krakow, Poland, June 29 – July 3 (2015)
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G. Tatsios, D. Valougeorgis and S. Stefanov, “Rarefied gas flow and heat transfer in a microcavity heated by a wall heat flux“, 4th European Conference on Microfluidics (mFlu”14), Limerick, Ireland, (2014).
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C. Tantos, S. Naris and D. Valougeorgis, “Gas separation in rarefied binary gas mixture flows through long tapered microchannels“, 10th International Conference of Hellenic Society of Theoretical and Applied mechanics (HSTAM), Xania, Greece, May 25-27, (2013).
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H. Chalabi, O. Buchina, L. Saraceno, M. Lorenzini, D. Valougeorgis, G. L. Morini, “Experimental analysis of heat transfer between a heated wire and a rarefied gas in an annular gap with high diameter ratio“, 1st European Conference on Gas Microflows – Journal of Physics: Conference Series 362, 012028, 2012, Skiathos, Greece, June 6-8, (2012).
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A. Frijns, D. Valougeorgis, S. Colin and L. Baldas, “Preface”, 1st European Conference on Gas Micro Flows (GASMEMS 2012), Journal of Physics: Conference Series, 362, 011001, (2012).
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L.Szalmas, D. Valougeorgis and S. Colin, “DSMC simulation of binary gas flows through short tubes“. ASME – 9th International Conference in Nanochannels, Microchaneels and Minichannels (ICNMM11), Edmonton, Canada, (2011).
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S. Pantazis, D. Valougeorgis and F. Sharipov, “The end effect for rarefied gas flow through a long channel“, 27th Rarefied Gas Dynamics Conference, California, USA, (2010).
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S. Pantazis and D. Valougeorgis, “Simulation of gaseous microscale transport phenomena via kinetic theory“, ASME – 8th International Conference on Nanochannels, Microchannels and Minichannels (ICNMM10), Montreal, Canada, (2010).
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L. Szalmas and D. Valougeorgis, “DSMC simulation of pressure driven binary gas flow through a short microtube“, 2nd European Conference on Microfluidics (μFlu’10), Toulouse, France, (2010).
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J. Lihnaropoulos, O. Buchina and D. Valougeorgis, “Starting flow in long rectangular microchannel over the whole range of the Knudsen number“, Proceedings of the 2nd European Conference on Microfluidics, Toulouse, (2010).
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Y. Lihnaropoulos, O. Buchina, D. Valougeorgis, “Unsteady rarefied gas flow between parallel plates”, Proceedings of the 2nd GASMEMS Workshop, Les Embiez, 2010
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S. Pantazis and D. Valougeorgis, “The Cercignani-Lampis boundary conditions in rectangular microchannels”, 1st GASMEMS Workshop, Eindhoven, (2009).
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S. Varoutis, J. Lihnaropoulos, D. Mathioulakis, A.Tserepi and D. Valougeorgis, “Estimation of the Poiseuille number and of the exact hydraulic diameter in rarefied gas flows through channels of various cross sections”, 1st European Conference on Microfluidics (mFlu’08), Bologna, Italy, (2008).
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S. Varoutis, D. Valougeorgis and F. Sharipov, “Rarefied Gas Flow through Tubes of Finite Length”, 26th Rarefied Gas Dynamics, Kyoto, Japan, (2008).
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S. Misdanitis and D. Valougeorgis, “Couette flow with heat transfer in the whole range of the Knudsen number”, ASME – 6th International Conference on Nano- Micro- and Mini-Channels, Darmstadt, Germany, (2008).
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S. Pantazis and D. Valougeorgis, “Heat transfer between parallel plates via kinetic theory in the whole range of the Knudsen number” 5th European Thermal-Sciences Conference, Eindhoven, (2008).