Learning Forum

[ashiadarsh]

Hi All,

     I am simulating the flow of water in a square channel...at the outlet boundary condition is Pressure outlet with Gauge pressure zero...at the inlet mass flow rate is specified...what is the value of Initial/Supersonic gauge pressure i should specify at the inlet?

Adarsh

[Keyur Kanade]

if your flow is going to be supersonic then this value will be considered. if your flow is not supersonic, you can keep it as default i.e. zero. 

[ashiadarsh]

Ok Thank you for the reply...so what will be the case for a supersonic flow?..i wanted to simulate the flow through nozzle also with Air as the fluid

Adarsh

[Rob]

For supersonic flow you'll need to set the initial pressure too: if you click on "Help" in the boundary condition panel it'll take you to the correct page and then read & follow the links.