Fluid Mechanics ΙΙ

COURSE CONTENT

BASIC PRINCIPLES OF IDEAL FLOW. Fluid deformation and vorticity. Stream function and velocity potential. ELEMENTARY FLOWS. Parallel flow, source, sink and dynamic vortex. EQUATIONS OF MOTION. Equation of continuity, momentum (Navier-Stokes), energy. Laminar flow between parallel plates. Couette Flow. Hagen – Poiseuille Flow. Flow in orthogonal pipeline. Dimensional form of flow equations. Dimensional characteristic numbers. BOUNDARY LAYER. Its equations. Blasius flow on a flat plate. TURBULENT BOUNDARY LAYERS. Turbulent boundary layer of circular pipes and flat plate.

LEARNING OUTCOMES

This is a basic lesson of the Mechanical and Aeronautical Engineering and aims to give to the Mechanical and Aeronautical Engineer students advanced knowledge of Fluid Mechanics about their behavior in three-dimensional kinematic situations with the aim of investigating their impact and development of the boundary layer in components and installations of mechanical interest (plates, cylinders, wings, etc.). This knowledge is necessary and is used in many subsequent courses of Mechanical and Aeronautical Engineering, such as Aerodynamics, Wind Energy Systems, Multiphase Flows etc., but also for diploma thesis, doctoral theses and research work in general.

Upon successful completion of the course, the student will:

  • Understands the basics magnitudes that govern the state of fluid movement in both ideal and real flow conditions (ideal flow, frictional flow, boundary layers).
  • Has knowledge of calculating the flow behavior of various fluids in simple and complex flow fields, both in internal and external flows, resulting in the calculation of velocity, pressure and temperature distributions.
  • Knows and be able to apply the fundamental equations governing the movement of fluids (equations of continuity, momentum and energy of the fluids) so that they can determine the fluid-solid interaction and calculate the forces and moments are applied to the solids by the flow of fluids (resistance (drag) force, lift, pitching moment, etc.).
  • Has the appropriate background for the development of a research project in the field of Fluid Mechanics and by extension for the diploma thesis or PhD dissertation.
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