How to give varying inlet mass flow with respect to time
 

Hi guys I'm simulating exhaust manifold.. My interest is to find temperature on the manifold surface.. I have inlet mass flow from the engine with respect to time.. How can I give varrying mass flow with respect to time in Cfx Pre? Thanks in advance

There are many ways to do this. "User function" is one (you can import a .txt file of two columns.

Actually right now im use that. txt method only.. I want to make that periodic.. How can I do that

Use the CEL function "mod" to find where you are in the current cycle. Then use that variable as a look-up function. This will make the function periodic in time.

Thanks it works