Hello all,
I read some document about flow simulation recently and it was said that Flow Sim can simulate both compressible and incompressible flows.
Can someone explain in simple words what is exactly the difference between them.?? Is it related to "high mach" option?
Thanks
generally speaking it refers to constant density or variable density. In practical terms density changes start to become significant around 0.3 Mach number though you could argue that number up and down a bit - lowest I have seen if 0.2 Mach. Flow sim handles it for you so no issue. The high Mach number setting is for flow that are dominated by flows over Mach 1.
here is what the help says: