ABSTRACT

Thermal analyses of power-conversion systems involve the solution of transport equations of mass, momentum, and energy in forms that are appropriate for the system conditions. Engineering analysis often starts with suitably tailored transport equations. These equations are achieved by simplifying the general equations, depending on the necessary level of resolution of spatial distributions, the nature of the fluids involved (e.g., compressibility), and the numerical accuracy required for the analysis. The general forms of the transport equations for single-phase flow and many of the simplifying assumptions are discussed in this chapter.