Monte Carlo Simulation in Thermal Radiative Transfer: Method Review, Validation and Parameter Sensitivity

Koreshi, Zafar U.; Siddiq, Sadaf; Shah, Tasneem M.
October 2009
International Journal of Mechanical & Mechatronics Engineering;Oct2009, Vol. 9 Issue 9, p221
Academic Journal
Monte Carlo (MC) simulation is extensively used for solving thermal radiation problems in high-temperature environments, such as combustion chambers and furnaces, and irregular-geometry enclosures containing participative media such as combustive gases. The quantities of interest are surface radiosities and subsequent radiative heat fluxes which have been accurately determined by MC in configurations which are challenging for deterministic formulations. The attractiveness of MC schemes becomes more prominent in mixed-mode and coupled thermo-fluid problems, where the non-linearity, spectral characteristics and geometrical complexity may render deterministic treatments largely ineffective. This work deals with thermal radiative estimates for hot grey diffuse surfaces and grey participative media. Simple test-configurations are considered for which exact solutions are available and MC simulation is used to make validation comparisons. We also consider the analog simulation process to compute sensitivities of independent parameter variations, such as material density, in a single simulation. Such a capability increases the applicability of MC methods to optimization studies as easily as deterministic methods based on variational schemes.


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