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Архив
Proceedings of the 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2017)


ISBN Онлайн: 978-1-56700-478-6

MONTE CARLO METHOD FOR RADIANT HEAT TRANSFER PREDICTION IN ENCLOSURES WITH EMITTING AND ABSORBING MEDIUM

DOI: 10.1615/IHMTC-2017.2740
pages 1953-1959

Ullekh Pandey
Vikram Sarabhai Space Centre, Indian Space Research Organisation, Thiruvananthapuram, Kerala, India,695522

K. Praghna
IIST, Thiruvananthapuram, India, 695547

M. J. Chacko
Vikram Sarabhai Space Centre, ISRO, Thiruvananthapuram, Kerala, India, 695522

T. V. Radhakrishnan
Vikram Sarabhai Space Centre, ISRO, Thiruvananthapuram, Kerala, India, 695522

S. R. Shine
Department of Aerospace Engineering, Indian Institute of Space Science and Technology, Trivandrum – 695547, Kerala, India

Аннотация

Monte Carlo method in which radiative energy exchange is modelled as emission and absorption of energy bundles is successfully used by many researchers to investigate radiation from a cloud of absorbing, emitting, and scattering particles. In the present study, radiative heat transfer within an enclosure containing participating media is modelled using Monte Carlo method. Participating media is considered as a gas with uniform absorption coefficient. A generalized Fortran code is developed using Monte Carlo method for radiation heat transfer. The capability of code includes the domain discretization, tracking of photons from each gas and wall element and computation of wall heat flux for given wall emissivities, absorption coefficients, wall and gas temperatures. Based on the inputs, an energy balance is applied for each control volume and wall elements to estimate the wall heat flux levels. The code is validated using a bench mark problem of black enclosure with emitting medium. The code is further used to conduct parametric studies for various input parameters like wall emissivities, absorption coefficients, etc.