[Dan1788]

Hi,

My project is based on LES of jet flames. To generate appropriate turbulent inflow conditions for the jet, I did a precursor LES simulation of a pipe with periodic boundary conditions in the streamwise direction and achieved fully developed turbulence.

My question now is this: After achieving fully developed turbulence in the pipe, is it conceptually correct to take a slice of the pipe and map it to the jet as the turbulent inflow boundary condition for the jet ?? Also do I need to do this mapping at every time step or just for time = 0 is enough ?

I am really confused with this. Please let me know if anyone can suggest something. Thanks!