Models manual (Heat Equation)

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Takala
Posts: 186
Joined: 23 Aug 2009, 23:59

Models manual (Heat Equation)

Post by Takala »

Hi,

Is there an error in the models manual at eq. (1.1)? There is a source term: rho*h, which means that the h is heat generation/massunit (e.g. W/kg)
however, later on the h is clearly volumetric heating. For example joule heating: 1/sigma * J**2.

please advise,

/Eelis
raback
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Re: Models manual (Heat Equation)

Post by raback »

Hi Eelis

Nope. There is no error. This is a historic choice and I would also now choose otherwise, but the "Heat Source" is really in terms of W/kg. The frictional and Joule heating and computed internally in terms of W/m^3 and are therefore not multiplied by density.

-Peter
Takala
Posts: 186
Joined: 23 Aug 2009, 23:59

Re: Models manual (Heat Equation)

Post by Takala »

ok. Thank you for the clarification.

I would recommend to make this clarification also in the models manual. Also, there could maybe be an optional input term for volumetric heating?

Cheers,

Eelis
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