Transcription of FLUID MECHANICS TUTORIAL 9 COMPRESSIBLE FLOW
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FLUID MECHANICS TUTORIAL 9 COMPRESSIBLE FLOW
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. You should know that the area under a pressure-volume diagram for a reversible expansion or compression gives the work done during the process. In thermodynamics there are two forms of energy transfer, work (W) and heat (Q).
You should already be familiar with the theory of work laws in closed systems. You should know that the area under a pressure-volume diagram for a reversible expansion or compression gives the work done during the process. In thermodynamics there are two forms of energy transfer, work (W) and heat (Q). By
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