2
2nd YEAR FLUIDS / COMPRESSIBLE FLOW
3
CONSEQUENTLY IN GAS FLOWS
- THE ABOVE LINKAGE IS SIMILAR TO THAT BETWEEN PRESSURE AND VELOCITY FOUND IN FREE SURFACE FLOWS.
- AS IT WILL BE SHOWN, A NUMBER OF FLOW FEATURES IN COMPRESSIBLE FLOWS ARE ANALOGOUS TO FEATURES ALREADY ENCOUNTERED IN THE DISCUSSION OF OPEN CHANNEL FLOWS.
- ONE SUCH ANALOGY CONCERNS THE FUNCTION OF SOUND WAVES AND SURFACE WAVES.
3.2 SPEED OF SOUND
- FOR BOTH INTERNAL AND EXTERNAL FLOWS, SOUND WAVES PERFORM A FUNCTION SIMILAR TO THAT OF GRAVITY (SURFACE) WAVES IN FREE SURFACE FLOWS.
