Applications of a New Model for the Differential Cross-Section of a Classical Polyatomic Gas

  • We give a comparison of various differential cross-section models for a classical polyatomic gas for a homogeneous relaxation problem and the shock wave profiles at Mach numbers 1.71 and 12.9. Besides the standard Borgnakke-Larsen model and its generalizations to an energy dependent coefficient to control the amnount of rotationally elastic and completely inelastic collisions, we discuss some new models recently proposed by the same authors. Moreover, we present numerical algorithms to implement the models in a particle or Monte-Carlo code and compare the numerical shock wave profiles with existing experimental data.

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Author:Carlo Cercignani, Maria Lampis, Jens Struckmeier
URN (permanent link):urn:nbn:de:hbz:386-kluedo-6120
Serie (Series number):Berichte der Arbeitsgruppe Technomathematik (AGTM Report) (204)
Document Type:Preprint
Language of publication:English
Year of Completion:1999
Year of Publication:1999
Publishing Institute:Technische Universität Kaiserslautern
Date of the Publication (Server):2000/04/03
Tag:Differential Cross-Sections ; Experimental Data; Homogeneous Relaxation ; Numerical Simulation ; Rarefied Polyatomic Gases ; Shock Wave Problem
Faculties / Organisational entities:Fachbereich Mathematik
DDC-Cassification:5 Naturwissenschaften und Mathematik / 51 Mathematik / 510 Mathematik
Licence (German):Standard gemäß KLUEDO-Leitlinien vor dem 27.05.2011

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