Comparison of viscosities from the Chapman-Enskog and relaxation time methods

• Autorzy: Anton Wiranata , Madappa Prakash , Purnendu Chakraborty
• Języki publikacji: EN

Abstrakty

EN

A quantitative comparison between the results of shear viscosities from the Chapman-Enskog and relaxation time methods is performed for selected test cases with specified elastic differential cross sections: (i) the non-relativistic, relativistic and ultra-relativistic hard sphere gas with angle and energy independent differntial cross section, (ii) the Maxwell gas, (iii) chiral pions and (iv) massive pions. Our quantitative results reveal that the extent of agreement (or disagreement) depends very sensitively on the energy dependence of the differential cross sections employed.

Słowa kluczowe

EN

shear viscosity; Chapman-Enskog approximation; relaxation time approximation

• Czasopismo: Open Physics
• Rocznik: 2012
• Tom: 10
• Numer: 6
• Strony: 1349-1351

Daty

wydano

2012-12-01

online

2012-12-04

Twórcy

autor

Anton Wiranata,

autor

Madappa Prakash

• Department of Physics & Astronomy, Ohio University, Athens, OH, 45701, USA,

autor

Purnendu Chakraborty

• Physical Research Laboratory, Ahmedabad, India,

Bibliografia

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• [6] P. Chakraborty, J.I. Kapusta, Phys. Rev. C83, 014906 (2011)
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• [8] A. Wiranata, Transport Properties of Interacting Hadrons, PhD thesis, Ohio University, USA, 2011

Identyfikatory

DOI

10.2478/s11534-012-0082-3