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Previous solution time-dependant data fixed when solved for next application mode
Posted 3 nov. 2009, 05:34 UTC−5 1 Reply
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Hi,
I have 3 application modes; Stokes Flow (mmglf2), Convection and Diffusion (chcd) and Electric Currents (emqvw). The stokes flow is the ruling application mode.
If I solve for mmglf2 and chcd together (but output all variables) using "initial value expression" and "zero" in the solver manager intial value tab. I then post process for the concentration and I can see how it diffuses over-time by changing the solution time (0:0.1:100).
However, when I solve for the Electric Currents, by choosing "current solution" in both options in the solver manager initial values tab, the model solves, but for some reason I loose the time variance of the original solution. What I mean by this is that if now I go and vary the solution time for the previous concentration plot, the diffusion stays the same for all instances of time, the last time value 100?
I cannot think of any valid reasons why this would happen?
Regards,
Tom
I have 3 application modes; Stokes Flow (mmglf2), Convection and Diffusion (chcd) and Electric Currents (emqvw). The stokes flow is the ruling application mode.
If I solve for mmglf2 and chcd together (but output all variables) using "initial value expression" and "zero" in the solver manager intial value tab. I then post process for the concentration and I can see how it diffuses over-time by changing the solution time (0:0.1:100).
However, when I solve for the Electric Currents, by choosing "current solution" in both options in the solver manager initial values tab, the model solves, but for some reason I loose the time variance of the original solution. What I mean by this is that if now I go and vary the solution time for the previous concentration plot, the diffusion stays the same for all instances of time, the last time value 100?
I cannot think of any valid reasons why this would happen?
Regards,
Tom
1 Reply Last Post 4 nov. 2009, 02:01 UTC−5
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Posted:
2 decades ago
Hi
I'm not sure I fully got everything, but if you run a time dependent solver and then switch to a another, how can the system know the "time" t, since it's defned in the solver settings ?
I would try to "save" the last solution, and restat from the saved solution, if I remember right there is an option to select the time value for the save operation.
Again I might be wrong, havnt tried yet mixing solutions like that but it's an interesting though and test to do
Goood luck
Ivar
I'm not sure I fully got everything, but if you run a time dependent solver and then switch to a another, how can the system know the "time" t, since it's defned in the solver settings ?
I would try to "save" the last solution, and restat from the saved solution, if I remember right there is an option to select the time value for the save operation.
Again I might be wrong, havnt tried yet mixing solutions like that but it's an interesting though and test to do
Goood luck
Ivar