Abstract

The behavior of numerical solutions to conjugate heat transfer problems when thermal radiation is significant is discussed. Hidden behavior that can prevent convergence of numerical techniques is shown through a simple example and comparison with analytical solution of the resulting quartic equation. The paper illustrates why the nonlinear form of the governing energy equations can present unexpected behavior in numerical solutions, and this can prevent converged solutions in many cases. Discussion of whether apparent bifurcation/chaos in the solution has meaning in this class of problems is discussed.

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