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Heat Distribution in a Circular Cylindrical Rod cfunction doesnt include density?

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In this example on mathworks the function is stated
but then when inserting into the PDE they use
cFunc = @(region,state) cp*region.y;
ignoring density (rho) therefore, why is it not
cFunc = @(region,state) cp*rho*region.y;
Thank you

Accepted Answer

Alan Weiss
Alan Weiss on 6 Sep 2017
In this section of the example you can see that rho is included in the 'MassDensity' argument, which automatically applies it to the correct part of the equation. If you were using the generic solver instead of the thermal solver, then indeed you would include rho in the d argument.
Alan Weiss
MATLAB mathematical toolbox documentation

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