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Convergence problem with Find

Raiko
14-Alexandrite

Convergence problem with Find

Hello folks,

I have here a worksheet (MC15 on a 64 bit Win 7 machine) in which I tried to achieve by a solve block what I have done with an iteration. It is a plain heat transfer problem for which I try to compute the gas temperature in a confined volume.

Problem is that the Find function works like a charm but delivers a wrong answer; the solver finds a linear temperature increase wheas my iteration shows a saturation effect. I suspect that I have stated the conditions wrong.

Does anybody have the time at hands to check what's wrong?

Thank's

Raiko

Sorry, but it's in German.

1 ACCEPTED SOLUTION

Accepted Solutions
AlanStevens
15-Moonstone
(To:Raiko)

Why not just use Odesolve?

aufheizen.PNG

Alan

View solution in original post

3 REPLIES 3
AlanStevens
15-Moonstone
(To:Raiko)

Why not just use Odesolve?

aufheizen.PNG

Alan

Raiko
14-Alexandrite
(To:AlanStevens)

Thank you Alan. You made my day!

Raiko

AlanStevens
15-Moonstone
(To:Raiko)

Raiko Milanovic wrote:

Thank you Alan. You made my day!

Raiko

No problem! Perhaps I should also point out that there is an analytical solution to the ode:

aufheizen2.PNG

Alan

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