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Subject: Re: Variable initial temperature
Author: Karen Dhuyvetter
Date: 1999-08-09 16:45:00

George,

I believe that there are 3 ways to do so:

1) You could define a steady state analysis for the first LS. Specify a small
end
time (order of magnitude of 1e-3). Define a too small number might cause
numerical
errors. Solve this LS.

2) You could define a transient analysis for the first LS w/ transient effects
off.
(TIMINT,off).

3) A 3rd option is selecting specific nodes and define initial conditions (IC)
on
these picked nodes:
Solu>Loads>Apply>Initial Conditions>Define>Pick the nodes

Let's hope this solves your problem.
- Karen.

George R Cunnington wrote:

> From: "George R Cunnington"

> How do I initialize various parts of the model to different initial
temperatures
> for a thermal solution? I tried setting various sets of nodes to different
> temperatures in the fist (real short) load step with no heat loads. Then in
the
> second load step I used ddele,all,all and solved. It choked.

> Thanks

> Rick Cunnington

Karen Dhuyvetter
Engineering Consultant
Collaborative Solutions Inc.
5962 La Place Court, Suite 100,
Carlsbad, CA 92008
TEL: (760) 431.4815 ext.113
FAX: (760) 431.4824
WWW: http://www.csi-ansys.com

Posts possibly associated with message #3860AuthorDateScore
3853Variable initial temperature(George) Rick Cunnington1999/08/09 
3860Re: Variable initial temperatureKaren Dhuyvetter1999/08/09 
3861Re: Variable initial temperature(George) Rick Cunnington1999/08/09 
3863Re: Variable initial temperatureMark Troscinski1999/08/09 
3864Re: Variable initial temperatureJohn Swanson1999/08/09 
3928Re: Variable initial temperatureKaren Dhuyvetter1999/08/11