Compressible fluid flow

NATIIONAL TE ECHNICAL L UNIVER RSITY OF A ATHENS

SCH HOOL OF F MECHA ANICAL ENGINEE E ERING

MEC CHANICAL CONSTRUCTIONS AND AU UTOMATIC C CONTRO OL SECTIO ON

MACHIN M NE ELEM MENTS LABOR RATORY Y Direc ctor: Th.. Costop poulos, D.Sc. D

NTUA A ME Prroceedinggs of Maachine Deesign Traaining Fluid P Power Sy ystems Fluid-8: Com mpressible fluid flow

SM-F LUID-TR R-0603

Theodore Costopoulos, D.S Sc.

AT THENS 20 006

Fluid-8: Compressible fluid flow CONTENTS 1. Concepts from Thermodynamics : Variables of state, 1st law of Thermodynamics, Application of the 1st law to reversible processes, Application of the 1st law to irreversible processes, Perfect gas, 2nd law of Thermodynamics and the concept of Entropy, Equations of State, Enthalpy. 2. One dimensional compressible flow : Continuity equation, Energy equation, Reservoir or Stagnation conditions, Euler’s equation, Momentum equation, Isentropic flow, Speed of Sound, Mach number, Bernoulli equation, Normal shock relations for a perfect gas. 3. One dimensional wave propagation : The propagating shock wave, Acoustic equations, Propagation of acoustic waves, The sound wave, Impulsively moving piston in a duct, The shock tube. 4. Exercises,

applications,

compressible fluid flow.

examples

and

problems

in