Considering time value in the boundary profile?
 

I am trying to simulate fluctated wind pressure of building using cfx10.First, I have used Matlab software to generate the time history of wind velocity;then, I want to add the time history of wind velocity to the inlet boundary condition by using the boundary profile of cfx10 .To this step, the question is how can I reach this target.

List the format what I have tried and failed:
[Name]
My Boundary
[Spatial Fields]
x, y , z...
[Data]
x[m],y[m],z[m],t[s],Velocity u[ms^-1]
1,2,1,0,1
1,2,1,0.5,2
1,2,1,1.5,0.9
......
Need your help,thank you!

Re: Considering time value in the boundary profile
 

Hi,

I guess you need to setup a CEL Expression with something like Function(x,y,z,t,u)in CFX, where x,y,z,t are input and u output data. Create a User Function where to read the data of your txt file and send the data via Function(x,y,z,t,u) back to the boundary condition. I think there are some examples in the CFX manual for CEL or User Junction Box which can you help further.

TobiasZ

Re: Considering time value in the boundary profile
 

Thank you!! I will try it now!!

Re: Considering time value in the boundary profile
 

TobiasZ,thank you for your help! I has obtained the real results with using the user cel function.

Hi,Aibo.
Now,I meet the same problem with you.Can you tell me how you to solve it?
Thank you! my email : kjrzyh@126.com