Compressible flow Compressible flow is that branch of fluid mechanics which deals with flow of fluids having significant changes in fluid density. Gases display such a behavior since liquids are in-compressible.  Mach number  (the ratio of the speed of the fluid flow to the speed of sound) decides about the compressible and in-compressible flow.When Mach number […]

 Compressible Flow NORMAL SHOCK IN A COMPRESSIBLE FLUID FLOW When the flow passes from a supersonic to subsonic in a SMALL distance, the velocity decreases suddenly and pressure rises sharply. This sudden pressure rise is a normal to the pipe surface and is called the NORMAL SHOCK. It happens only in a compressible flow (gas […]