Community > Discussion Forum > Non-isothermal flow problem

Discussion Forum

Non-isothermal flow problem

Topics: Heat Transfer, 4.2a, non-isothermal flow

Thread index  |  Previous thread  |  Next thread  |  Start a new discussion

RSS FeedRSS feed   |   Email notificationsTurn on email notifications   |   3 Replies   Last post: April 10, 2013 2:12pm UTC
Ross Clarke

Ross Clarke

April 18, 2012 1:49pm UTC

Non-isothermal flow problem

Hi there,

I am trying to create a model that is similar to the cold water glass model found within the comsol model library. However, I want to have a temperature governed by a step function at the bottom (which I have) and a cold temperature at the top that I just define in the initial values.

However, when I try to compute the model, an error appears that says that the time-dep solution is not converging, could I get some help with this please!

Thanks

Ross

Reply  |  Reply with Quote  |  Send private message  |  Report Abuse

Ross Clarke

Ross Clarke

April 18, 2012 1:53pm UTC in response to Ross Clarke

Re: Non-isothermal flow problem

Exact error:

Nonlinear solver did not converge
Time=(arbitrary time)
Last time step is not converged
-FeatureTime-Dep Solver 1 (Sol1/t1)
- Error: Nonlinear ssolver did not converge


Thanks

Reply  |  Reply with Quote  |  Send private message  |  Report Abuse

Rajat Tyagi

Rajat Tyagi

June 17, 2012 4:04am UTC in response to Ross Clarke

Re: Non-isothermal flow problem

Same results...Did you figure a solution?

Reply  |  Reply with Quote  |  Send private message  |  Report Abuse

Vo Thanh Tung

Vo Thanh Tung

April 10, 2013 2:12pm UTC in response to Rajat Tyagi

Re: Non-isothermal flow problem

Hi there,

I am trying to create a model similar to the cold water glass model found within the comsol model library. However, I would like to change the level of water in the glass, not full.

Help me to solve this problem?
Thanks

Vo Thanh Tung

Reply  |  Reply with Quote  |  Send private message  |  Report Abuse


Rules and guidelines