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boundary condition variable
Posted Mar 25, 2015, 6:11 a.m. EDT 1 Reply
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Hi I have a problem,
I'm a new user of COMSOL and I'm working on heat transfer in solids my problem is that the boundary condition "temperature" is not constant it dépends on time (T=a*t+b) and i have to get a curve can you help me to solve that ? thanx
I'm a new user of COMSOL and I'm working on heat transfer in solids my problem is that the boundary condition "temperature" is not constant it dépends on time (T=a*t+b) and i have to get a curve can you help me to solve that ? thanx
1 Reply Last Post Mar 25, 2015, 8:35 a.m. EDT
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Posted:
10 years ago
The question of time dependent BCs has been discussed on this forum a lot. One way of doing it would be defining an analytic function. First define parameters (for example)
A: 5[K/min]
B: 200[K]
Define analytic function
Tt = A*t + B
Function definition tab asks for the units of the argument and the function.
In the BC box type Tt(t).
br
Lasse
A: 5[K/min]
B: 200[K]
Define analytic function
Tt = A*t + B
Function definition tab asks for the units of the argument and the function.
In the BC box type Tt(t).
br
Lasse