specific heat in solid
Hi, I need to calculate case when cp of solid increases with temperature, so I change specific heat of solid during the calculation (transient)using SPECH.f , and the result is a drop of temperature in solid, when cp is increased. Do you have any experience with that? what's wrong? Thanks Marescu
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Re: specific heat in solid
For a constant heat flux, higher Cp will results in lower dT = Q=m*Cp*dT. So depending upon your problem, that may be correct. What do you expect to happen?
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Re: specific heat in solid
this is not what i mean. There is a is a drop of Temperature in the time step the cp is changed . i.e. for constant positive heat flux, following Q=m*cp*dT the temperature is still growing( with different dT),- no temperature drop. So I've got sudden temperature drop in one particular time step....
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Re: specific heat in solid
in specht.f
C------------------------------------------------------------------------- C C This subroutine enables the user to specify the mean specific heat C capacity at cells and boundaries. C C CP - Mean specific heat capacity (J/kgK) C (of the background fluid in multi-component fluids) so I think, you must set "Mean specific heat capacity " at each temperature of solid |
Re: specific heat in solid *NM*
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