Comment on “Model kinetic equation for low-density granular flow”

A. Goldshtein*, M. Shapiro

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Hydrodynamic equations for a system of inelastically colliding granules were systematically derived on the basis of the Boltzmann equation by the Chapman-Enskog method. [A. I. Goldshtein, V. N. Poturaev, and I. A. Shulyak, Fluid Dyn. (USSR) 25, 305 (1990); A. Goldshtein and M. Shapiro, J. Fluid Mech. 282, 75 (1995)]. We feel that this problem has recently been incorrectly treated by J. J. Brey, F. Moreno, and James W. Dufty [Phys. Rev. E 54, 445 (1996)] using the Bhatnagar-Gross-Krook approximation of the kinetic equation. In this Comment, the inconsistency of their approach is analyzed, and possible adequate methods for stability analyses of the homogeneous state of inelastic granules are delineated.

Original languageEnglish
Pages (from-to)6210-6211
Number of pages2
JournalPhysical Review E
Issue number5
StatePublished - 1998
Externally publishedYes


Dive into the research topics of 'Comment on “Model kinetic equation for low-density granular flow”'. Together they form a unique fingerprint.

Cite this