Transcription of FLUID MECHANICS TUTORIAL 9 COMPRESSIBLE FLOW
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FLUID MECHANICS TUTORIAL 9 COMPRESSIBLE FLOW On completion of this TUTORIAL you should be able to define entropy derive expressions for entropy changes in fluids derive Bernoulli's equation for gas derive equations for COMPRESSIBLE ISENTROPIC flow derive equations for COMPRESSIBLE ISOTHERMAL flow solve problems involving COMPRESSIBLE flow derive equations for shock waves solve problems involving shock waves Let's start by revising entropy. 2 1. ENTROPY DEFINITION You should already be familiar with the theory of work laws in closed systems.
practical applications of this property and study the entropy changes which occur in closed and steady flow systems for perfect gases and vapours. These derivations should be learned for the examination. 4 D.J.Dunn 3. ENTROPY CHANGES FOR A PERFECT GAS IN A CLOSED SYSTEMS
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