Supersonic flow through contracting area 2

[Pierre1512]

Does anyone know please, if a gas is flowing supersonically and then encounters a gradually contracting ducting:
Does the Mach No decrease?
Does the pressure increase?

 

[VEBill]

This video might be of interest.

SR-71 Engine

 

[Pierre1512]

Thank you! That was better than perfect!

 

[MOHR1951]

Wish we would have had this type of demo in Thermo & Gas Dynamics.