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Equation of energy (microscopic energy balance)  in Cartesian, cylindrical, and spherical coordinates for Newtonian fluids of constant density, with source term S.  Source could be viscous dissipation, electrical energy, chemical energy, etc., with units of energy/(volume~time). Two cases are presented: the general case where thermal conductivity may be a function of temperature (vector flux appears in the equations);
and the more usual case, where thermal conductivity is constant.

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CM3110 Faith Morrison Michigan Technological University


Return to Handout Page | Return to CM3110 Home Page  | Department of Chemical Engineering Michigan Tech