Verified email at bldeacet.ac.in
BLDEA's Dr P G Halakatti college of Engineering and Technology
Multi-mode heat transfer, Non-gray participating media, and radiation heat transfer, Stability analysis of fluids
Gas radiative properties are highly non-linear and are functions of temperature, wave number, pressure, and mole fraction. Several forward models are available to calculate gas radiative properties, however, in some complex cases, it is required to use the inverse methodology to calculate the same.
Shashikant Cholake, Thirumalachari Sundararajan, and S. P. Venkateshan
Proceedings of the International Symposium on Radiative Transfer, eISSN: 26425629, Volume: 2019-June, Pages: 303-310, Published: 2019 Begellhouse
In the present work, the Rayleigh-Benard convective instability in a radiating fluid is studied numerically. The spectral collocation method based on Chebyshev polynomials is used to solve the linear stability equations while the Radiative Transfer Equation (RTE) is solved by the finite volume based discrete ordinates method. Weighted Sum of Gray Gases model (WSGG) has been used to incorporate non-gray behavior of the gas medium and solved along with RTE. The critical values of Rayleigh number and wave number are significantly influenced by the nongray behavior of the gas medium. Also, the mean operating temperature, mole fraction of gas species and wall emissivity play important roles with respect to the onset of fluid convection.
Shashikant Cholake, S. P. Venkateshan, and Thirumalachari Sundararajan
Computational Thermal Sciences, ISSN: 19402503, eISSN: 19402554, Pages: 489-507, Published: 2019 Begell House