[Zhaohui Lu]

Hi all,

Is there anybody know if UDF could define the velocity boundary which is related to time and space at the same time?

Thanks!

Joey

[General_Gee]

Heya,

Check here for a UDF velocity profile that varies with space

http://www.cfd-online.com/Forums/flu...d-turbine.html

you can access the current time using

real current_time;
current_time=RP_Get_Real("flow-time");

you can then add this into the equation for F_PROFILE

eg

F_PROFILE(f, thread, position) = 1.73-((15-y)*(15-y)*1.73/(30*30))+current_time;

Good luck

[Zhaohui Lu]

Originally Posted by General_Gee

Heya,

Check here for a UDF velocity profile that varies with space

http://www.cfd-online.com/Forums/flu...d-turbine.html

you can access the current time using

real current_time;
current_time=RP_Get_Real("flow-time");

you can then add this into the equation for F_PROFILE

eg

F_PROFILE(f, thread, position) = 1.73-((15-y)*(15-y)*1.73/(30*30))+current_time;

Good luck

Thanks man. let me try it again!