| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5429513 | Journal of Quantitative Spectroscopy and Radiative Transfer | 2011 | 17 Pages |
Application of the modified discrete ordinate method (MDOM) proposed by Mishra et al. [Mishra SC, Roy HK, Misra N. Discrete ordinate method with a new and simple quadrature scheme. J Quant Spectrosc Radiat Transfer 2006;101:249-262.] has been extended for calculation of volumetric radiative information in a cylindrical enclosure. Radiatively, the medium inside a diffuse gray 1-D concentric cylinder is absorbing, emitting and scattering. Three types of problems, viz., an isothermal medium representing non-radiative equilibrium case, a non-isothermal medium representing radiative equilibrium situation and the case of a combined mode conduction and radiation heat transfer have been used to test the robustness of the MDOM. Temperature/emissive power and heat flux/energy flow rate distributions in the medium have been found for the effects of various parameters like the extinction coefficient, the scattering albedo, the boundary emissivity and the conduction-radiation parameter. To check the accuracy of the results of the MDOM, results have been compared with those available in the literature and also by obtaining the radiative information using the finite volume method. MDOM has been found to provide accurate results.
Research HighlightsâºMDOM applied to 1-D cylindrical geometry. âºIn the MDOM, ordinates and weights are calculated from simple formulae. âºMDOM validated by solving three benchmark problems. âºSame problems also solved using the finite volume method. âºResults compare well with those available in the literature and also that obtained by the FVM.
