3 research outputs found
Establishing Relationship between Pressure & Normal Shocks for Convergent-Divergent Nozzle-
Objective of the present study is to analyze experimentally
the pressure variation in a varying area circular
passage at different supply pressures and compare these with
the theoretical solutions. It has been observed that flow of stream
of the normal shock is always supersonic while in downstream
is always sub-sonic thus shocks slow down the flow rates by
sudden increase in pressure ratios. Shock strength is determined
uniquely by the mach no. higher the mach no. of upstream
of supersonic flow , greater is the shock strength & lower is
downstream subsonic mach no. Theoretically minimum pressure
is always present at the throat during subsonic condition. But
experimentally the position of minimum pressure might be varied
because of variation in the stagnation properties of the fluid. This
project also includes flow phenomenon over the entire length of
nozzle for varying back pressure