21. If we take the isentropic compressibility to be some constant then then a generally valid relation allows you to write: 22. "' Isentropic expansion "'waves are created when a supersonic flow is redirected along a curved surface. 23. There are numerous applications where a steady, uniform, isentropic flow is a good approximation to the flow in conduits. 24. An example of such an exchange would be an isentropic expansion or compression that entails work done on or by the flow. 25. This can be measured at isentropic compression, resulting in a slight temperature increase ( in addition to the pressure increase ). 26. Since the flow turns in small angles and the changes across each expansion wave are small, the whole process is isentropic . 27. "' Variation of stage efficiency of an IFR turbine with blade-to-isentropic gas speed ratio "' 28. In the Otto cycle, there is no heat transfer during the process 1 2 and 3 4 as they are isentropic processes. 29. The Otto cycle consists of isentropic compression, heat addition at constant volume, isentropic expansion, and rejection of heat at constant volume. 30. The Otto cycle consists of isentropic compression, heat addition at constant volume, isentropic expansion, and rejection of heat at constant volume.
