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مکانیک::
تولید گرمایی حجمی
Therefore, the source term in Eq. 12.15 is then replaced by s - es - Sb, where Sb is the heat source due to volumetric heat generation per unit mass.
in which hs(x, t) - psb (x, t) is the heat source due to volumetric heat generation.
Therefore, the heat flux can be applied as rate of volumetric heat generation in a "real material layer" along the boundary of a nonzero volume.
Application of this type of boundary condition is accomplished by first calculating the rate of heat entering through the bounding surface by using Eq. 12.2, converting the heat flow rate, Q, to a heat generation per unit volume, and then specifying this volumetric heat generation to collocations points in the boundary region.
where Q is the volumetric heat generation, q is the heat flux, Sf is the area over which the heat flux is applied, and Vf is the volume of the boundary region.
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