[menachilis]

Hello everybody,

I am trying to simulate a high heat flux part of a reactor, and at some surfaces i have two different surface heat loads (W/m2) which i have to consider. I cannot just add the values in those areas since they are profiles(x,y,z coordinates and heat value).

Does anybody know if this is possible? I am trying to create the named selections for those boundaries while meshing, and since they overlap at the surfaces with both heat-loads, i can't even export from Meshing.

Summing up, i would like to apply two surface heatloads on a single surface

Any help is kindly appreciated!
Thanks

[javierrose]

Originally Posted by menachilis

Hello everybody,

I am trying to simulate a high heat flux part of a reactor, and at some surfaces i have two different surface heat loads (soundcloud downloader) which i have to consider. I cannot just add the values in those areas since they are profiles(x,y,z coordinates and heat value).

Does anybody know if this is possible? I am trying to create the named selections for those boundaries while meshing, and since they overlap at the surfaces with both heat-loads, i can't even export from Meshing.

Summing up, i would like to apply two surface heatloads on a single surface

Any help is kindly appreciated!
Thanks

One way can be you apply inlet boundary condition for time steps you require. Then stop the run, modify the boundary condition and resume the run. After modifying the boundary condition, do not initialise. Directly start run.

[AtoHM]

You can import the heat loads as profile data into Pre. Then you have an expression referencing your profile data.
Write another time-dependend expression like "If(t <= 1 [min], profiledata1, profiledata2)" referencing those profile-data-expressions. You could use step-function as well.

Then apply your time-dependend expression to the BC.