American Journal of Mechanical Engineering
ISSN (Print): 2328-4102 ISSN (Online): 2328-4110 Website: http://www.sciepub.com/journal/ajme Editor-in-chief: Kambiz Ebrahimi, Dr. SRINIVASA VENKATESHAPPA CHIKKOL
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American Journal of Mechanical Engineering. 2016, 4(2), 42-49
DOI: 10.12691/ajme-4-2-1
Open AccessArticle

Numerical Investigation of the Transient Radiative Heat Transfer inside a Hexagonal Furnace Filled with Particulate Medium

Elham Khademi Moghadam1, , Rasool Nasr Isfahani2 and Arash Azimi3

1Department of Physics, Shahid Chamran University of Ahvaz, Ahvaz, Iran

2Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL 32611, USA

3Department of Mechanical and Aerospace Engineering, Islamic Azad University, Tehran 14778-93855, Iran

Pub. Date: March 12, 2016

Cite this paper:
Elham Khademi Moghadam, Rasool Nasr Isfahani and Arash Azimi. Numerical Investigation of the Transient Radiative Heat Transfer inside a Hexagonal Furnace Filled with Particulate Medium. American Journal of Mechanical Engineering. 2016; 4(2):42-49. doi: 10.12691/ajme-4-2-1

Abstract

The transient radiative heat transfer in two 2D irregular geometry filled with particulate media is numerically investigated. The radiative transfer equation is solved with FTn finite volume method. Non-orthogonal mesh is used to discretize the computational domain and the high resolution CLAM scheme is utilized to relate the facial intensities to the nodal values. Various cases of scattering in media with real indices of refraction (dielectric particles) and complex indices of refraction (absorbing particles) are considered. Both Mie theory and equivalent isotropic approximation are used to account for the scattering behavior of the media. The difference between these two methods is found insignificant, especially for the steady state solutions and for media with complex indices of refraction, while the complexity and computational cost of the equivalent isotropic approximation is much lower than those of Mie theory.

Keywords:
transient radiative heat transfer Mie Theory equivalent isotropic approximation finite volume method non-orthogonal grid

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