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Volumn 79, Issue 5, 2009, Pages

Variance-reduced particle simulation of the Boltzmann transport equation in the relaxation-time approximation

Author keywords

[No Author keywords available]

Indexed keywords

BOLTZMANN TRANSPORT EQUATION; COLLISION ALGORITHMS; EQUILIBRIUM DISTRIBUTIONS; GAS FLOWS; LOCAL EQUILIBRIUM; PARTICLE SIMULATION METHOD; PARTICLE SIMULATIONS; PHYSICAL INTERPRETATION; RADIATIVE TRANSPORT; RELAXATION TO EQUILIBRIUM; STATISTICAL UNCERTAINTY; VARIANCE REDUCTIONS;

EID: 67549103850     PISSN: 15393755     EISSN: 15502376     Source Type: Journal    
DOI: 10.1103/PhysRevE.79.056711     Document Type: Article
Times cited : (71)

References (33)
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    • J. Chun and D. L. Koch, Phys. Fluids 17, 107107 (2005). 10.1063/1.2107807
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  • 20
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    • edited by T. Goudon, E. Sonnendrucker, and D. Talay (EDP Sciences, Les Ulis Cedex
    • L. Pareschi, in Proceedings of the ESAIM, edited by, T. Goudon, E. Sonnendrucker and, D. Talay, (EDP Sciences, Les Ulis Cedex, 2005), Vol. 15, pp. 87-120.
    • (2005) Proceedings of the ESAIM , vol.15 , pp. 87-120
    • Pareschi, L.1
  • 22
    • 67549107598 scopus 로고    scopus 로고
    • This extension of the present method to solutions of the nonlinear Boltzmann equation (which is a significantly different approach to Ref.) is the subject of current work.
    • This extension of the present method to solutions of the nonlinear Boltzmann equation (which is a significantly different approach to Ref.) is the subject of current work.
  • 24
    • 67549102868 scopus 로고    scopus 로고
    • In the linearized regime, all flows with τ=0 for the initial and boundary conditions are isothermal.
    • In the linearized regime, all flows with τ=0 for the initial and boundary conditions are isothermal.
  • 26
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    • S. K. Loyalka, J. Chem. Phys. 63, 4054 (1975). 10.1063/1.431847
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    • Loyalka, S.K.1
  • 29
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    • While it is tempting to generalize the technique in Ref. by shifting the velocity by δ u MB,z = 1 2 (κ+ 5 2 β) δ t and generating particles from the comparatively simpler distribution - Vcell c z c 2 β f 0 δ t, this approach results in a less efficient algorithm
    • While it is tempting to generalize the technique in Ref. by shifting the velocity by δ u MB,z = 1 2 (κ+ 5 2 β) δ t and generating particles from the comparatively simpler distribution - Vcell c z c 2 β f 0 δ t, this approach results in a less efficient algorithm.
  • 33
    • 67549100024 scopus 로고    scopus 로고
    • note
    • For this problem, the number of deviational particles in the variance-reduced method increases from zero and reaches a nearly constant value at steady state. In our variance-reduced simulation, there were approximately 105 particles at steady state, while the DSMC maintained 105 particles for the entire simulation time.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.