How to change the boundary condition based on timestep in transient thermal analysis
Posted: 15 Jul 2023, 08:41
Hi community!
I want to make a model that for the first 600 seconds the surface is heated with heat flux 10000W/m^2, then after that for another 600 seconds it stops heating the surface and releases heat to the external air(external temperature = 288K).
I would appreciate it if you would teach me how to write this down in the sif file.
Below is one part of the model that only heats the surface for 600 seconds.
Thanks for your kindness.
I want to make a model that for the first 600 seconds the surface is heated with heat flux 10000W/m^2, then after that for another 600 seconds it stops heating the surface and releases heat to the external air(external temperature = 288K).
I would appreciate it if you would teach me how to write this down in the sif file.
Below is one part of the model that only heats the surface for 600 seconds.
Thanks for your kindness.
Code: Select all
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Simulation
Max Output Level = 1
Coordinate System = Cartesian
Coordinate Mapping(3) = 1 2 3
Simulation Type = Transient
Steady State Max Iterations = 20
Output Intervals = 2
Timestep intervals = 600
Timestep Sizes = 1
Timestepping Method = BDF
BDF Order = 2
Solver Input File = case.sif
Post File = case.vtu
End
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Boundary Condition 1
Target Boundaries(1) = 1
Name = "Air-Facing Interface"
Heat Flux = 10000
End