An improved wavelength selection scheme for Monte Carlo solvers applied to hypersonic plasmas |
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| Authors: | Andrew Feldick |
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| Institution: | a Department of Mechanical and Nuclear Engineering, The Pennsylvania State University, University Park, PA 16802, USA
b School of Engineering, University of California Merced, Merced, CA 95340, USA |
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| Abstract: | A new databasing scheme is developed for Monte Carlo Ray Tracing methods applied to hypersonic planetary entry. In this scheme, the complex relationships for the emission wavelength selection of atomic and molecular species in nonequilibrium flows are simplified by developing random number relationships for individual transitions, as opposed to using relationships for the spectral emission coefficient of a given species. These new techniques speed up wavelength selection by about 2 orders of magnitude, and offer flexibility for use in weighted or part-spectrum Monte Carlo solvers. |
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| Keywords: | Monte Carlo methods Hypersonic flow Planetary entry Hypersonic plasma radiation Random number database Line-by-line radiation |
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