SIMULATION OF RADIATION HEAT TRANSFER OF THREE DIMENSIONAL PARTICIPATING MEDIA BY RADIATIVE EXCHANGE METHOD

Mohammad Hadi Bordbar*, Timo Hyppänen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

This paper describes the theoretical bases of the Radiative Exchange Method, a new numerical method for simulating radiation heat transfer. By considering radiative interaction between all points of the geometry and solving the radiation balance equation in a mesh structure coarser than the structure used in computational fluid flow calculation, this method is able to simulate radiative heat transfer in arbitrary 3D space with absorbing, emitting and scattering media surrounded by emitting, absorbing and reflecting surfaces. A new concept is introduced, that of the exchange factors between the different elements that are necessary for completing the radiative balance equation set. Using this method leads to a set of algebraic equations for the radiative outgoing power from each coarse cell being produced and the result of this set of equations was then used to calculate the volumetric radiative source term in the fine cell structure. The formulation of the exchange factor for a three-dimensional state and also a mesh size analysis that was conducted to optimize the accuracy and runtime are presented. The results of this model to simulate typical 3D furnace shape geometry, is verified by comparison with those of other numerical methods.

Original languageEnglish
Title of host publicationHT2008: PROCEEDING OF THE ASME SUMMER HEAT TRANSFER CONFERENCE, VOL 3
PublisherAmerican Society of Mechanical Engineers
Pages421-428
Number of pages8
ISBN (Print)978-0-7918-4849-4
Publication statusPublished - 2009
MoE publication typeA4 Article in a conference publication
EventASME Heat Transfer Summer Conference - Jacksonville, United States
Duration: 10 Aug 200814 Aug 2008

Conference

ConferenceASME Heat Transfer Summer Conference
CountryUnited States
CityJacksonville
Period10/08/200814/08/2008

Keywords

  • ANISOTROPIC SCATTERING MEDIA

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