The goal of this course is to introduce the student to the fundamental principles of the static and dynamic analysis of fluids and to familiarize him/her with basic calculations towards the prediction of static force distribution and essential dynamic properties of fluid flow in the framework of the integral form of the basic conservation laws.

• Applications of fluid mechanics – Fluids vs Solids and the theory of continuum – Basis properties of fluids
• Properties of the flow field – Analysis and representation of the flow field – Kinematics of fluids – Lagrangian and Eulerian representation of fluids – Velocity and acceleration fields
• Graphic representation of the flow field, pathlines, streamlines and streaklines – The concept of stream function – Deformation of a fluid element – Divergence and rotation of the velocity field and deformation tensor
• Nature of forces in a fluid –Volume, line and surface forces –Tensor calculus and the constitutive laws ‐Stress tensor and the concept of Newtonian fluid with a linear stress/rate of deformation tensor relation.
• Integral and differential form of the forces in a static fluid – Pressure as isotropic stress state at rest –Distribution of forces in a fluid at rest and Pascal’s principle – Hydrostatic forces on plane and curved submerged surfaces – Buoyancy and stability of floating objects
• Flow of ideal fluids and integration along and perpendicularly to the stream lines – Derivation of the Bernoulli’s principle form the differential form of the equations of motion for an ideal fluid – Bernoulli’s equation as a form of energy conservation for ideal fluids and applications of it
• Macroscopic analysis of flowing fluids via the Reynolds transport theorem using the concept of control  volume – Conservation of mass in integral and differential form – Simplified forms of the integral mass balance for steady state
• Integral form of newton’s second law for a control volume in moving and accelerated systems – First order estimates of forces exerted in moving fluids
• Integral form of the first law of thermodynamics and combination with the integral form of the conservation
  of mechanical energy ‐ The concept of Hydraulic and energy grade lines for frictionless fluid and its modification in the presence of friction and irreversible energy loss
•  Friction losses in laminar and turbulent flow and Moody’s diagram, with application of the macroscopic
  energy and mass balances for the study of flow in pipe systems – Laboratory case study in order to calibrate
  the performance of an axial flow pump

There are no prerequisite courses. It is recommended that students who are interested in
attending the course have completed successfully the following courses:

• ΓΕ0101 APPLIED MATHEMATICS I
• ΓΕ0102 APPLIED MATHEMATICS II
• ΓΕ0103 ORDINARY DIFFERENTIAL EQUATIONS 
• ΕΝ0101 THERMODYNAMICS  I
• ΕΝ0112 THERMODYNAMICS II

Literature:

•  B. R. Munson, D. F. Young and T. H. Okiishi, «Μηχανική των Ρευστών», 8Th Edition, Εκδόσεις Τζιόλα (Μετάφραση, Κ. Υάκινθος), 2017
• Papaioannou, Α., ‘Fluids Mechanics’,Vols. Ι & ΙΙ, 1993 & 1996 (in Greek)
• White, F.Μ., ‘Fluid Mechanics’, 4th Ed., McGraw‐Hill, 1999
• V.L. Streeter & E.B. Wylie, ‘Fluid Mechanics’, Translation: G. Tsimikalis, Fountas Publ., 2000 (in Greek)
• Bergeles, G., D. Papantonis & S. Tsagaris, ‘Technical measurements of Fluid Mechanics Quantities’, Symeon Publ., 1998 (in Greek)

Related Academic Journals

• Journal of Fluid Mechanics
• Journal of the Acoustical Society of America
• Physics of fluids
• Journal of Computational Physics
• International Journal of Heat and Mass Transfer

Greek

Lectures