Evaluation of three different radiative transfer equation solvers for combined conduction and radiation heat transfer

•Parametric study of 2D combined conduction and radiation heat transfer are performed;•P1, SP3 and FVM are chosen to solve the RTE;•A large range of conduction-radiation number and optical thickness are considered.

This work investigates the performance of P1 method, FVM and SP3 method for 2D combined conduction and radiation heat transfer problem. Results based on the Monte Carlo method coupled with the energy equation are used as the benchmark solutions. Effects of the conduction-radiation parameter and optical thickness are considered. Performance analyses in term of the accuracy of heat flux and temperature predictions and of computing time are presented and analyzed.