My program does not converge

[biblo]

Hi!!!
someone can help me please?
When I used the specific heat C in a transient thermal analysis, it converges correctly. But when I replace C by the corresponding values of ENTH, the program does not converge any more!!! Is there a particular command which I must use to avoid not-convergence?
here some commands witch i used:
ANTYPE,TRANS
NROPT,FULL
SOLCONTROL,ON
OUTRES,ALL,LAST
AUTOTS,ON
but it does not converge
Thank’s in advance
Barha

 

[Stringmaker]

It's been a while since I took thermo but as I recall it enthalpy, H, is a function of specific heat, C. Can you not enter C as a function of temperature? Enthalpy seems that it should be an ouput of the analysis rather than an input.

-Brian

 

[biblo]

Yes it seems to be an output but, in Ansys, if you have a phase change, you must enter it like a parameter of your material. ENTH is the specific enthalpy of your material. H=integral (DENS*C*dT). Normally it should give the same thing as if C were used but I would like to check that!!!

 

[biblo]

my programme converge now.
thank's
Barha