Dust coagulation in equilibrium molecular gas

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22 Citations (Scopus)


We study coagulation of dust particles immersed in equilibrium molecular gas. The dissipative grain interactions are modeled by a constant coefficient of restitution, while for the adhesive interactions the model of Johnson, Kendall and Roberts is applied. We formulate the Boltzmann-type master equation for the mass-velocity distribution function of aggregates and use the Kramers-Moyal expansion for the grain-gas collision integral. We derive coagulation equations and kinetic coefficients for these equations and analyze different regimes of the system evolution.

Original languageEnglish
Pages (from-to)93-97
Number of pages5
JournalMathematics and Computers in Simulation
Issue number2-6
Publication statusPublished - 9 Sep 2006
Externally publishedYes


  • Coagulation
  • Equillibrium molecular gas
  • Kinetic coefficient


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