A new higher order closure for stochastic transport equations
- Univ. of California, Los Angeles, CA (United States)
The problem of particle transport through a stochastic mixture of two immiscible materials is considered. The material mixing process is assumed to obey Markovian statistics. An ensemble average of this stochastic transport equation leads to two coupled transport equations containing four different ensemble-averaged intensities. A new higher order closure involving additional transport equations is suggested to close these equations. The closure philosophy is to demand that the closed set of equations reproduces certain exact limiting behaviors in rod geometry. Numerical results are given which compare the predictions of this new higher order closure with exact benchmark results as well as with results from the standard closure available in the literature.
- DOE Contract Number:
- FG03-93ER14355
- OSTI ID:
- 459180
- Report Number(s):
- CONF-950420--
- Country of Publication:
- United States
- Language:
- English
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