Rarefied gas simulations using quasiparticle pairs

V. L. Saveliev, Shigeru Yonemura, Yoshiaki Kawagoe

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Recently, the kinetic equation for two-particle distribution function under the Boltzmann approximations was proposed. Presenting scattering operator in divergence form enables to simulate the system of molecules by an equivalent system of quasiparticles. Effect of collisions is accounted by rotating quasiparticle pairs with the angular velocity that depends on the distribution function. In the paper we present new expressions for angular velocity of quasiparticle pair rotation, which are convenient for numerical calculations. We perform test simulations in the differential approximation for scattering operator. The approach expected to be useful in the range between continuum gas dynamics and Boltzmann equation descriptions.

Original languageEnglish
Title of host publication30th International Symposium on Rarefied Gas Dynamics, RGD 2016
EditorsHenning Struchtrup, Andrew Ketsdever
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735414488
Publication statusPublished - 2016 Nov 15
Event30th International Symposium on Rarefied Gas Dynamics, RGD 2016 - Victoria, Canada
Duration: 2016 Jul 102016 Jul 15

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Other30th International Symposium on Rarefied Gas Dynamics, RGD 2016

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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