Modeling of CO 2 homogeneous condensation plumes

Jiaqiang Zhong, Zheng Li, Deborah A. Levin

Research output: Contribution to journalConference articlepeer-review


A direct simulation Monte Carlo (DSMC) based homogenous condensation model is developed to study CO 2 free expanding condensation plumes. It is found that initial condensation onset locations are less sensitive to gas pressure or plume stagnation pressure than temperature. Gas translational and rotational temperatures are found to be in the equilibrium state for both condensation and noncondensation simulations. Numerical gas and cluster temperatures are compared to the experimental data, and the simulation results show that cluster temperatures are higher than gas temperatures due to condensation latent heat. The numerical simulation results of CO 2 cluster size, number density, and gas mole fraction in homogenous condensation plume are compared with experimental data of Ramos et al.

Original languageEnglish (US)
Pages (from-to)588-593
Number of pages6
JournalAIP Conference Proceedings
StatePublished - 2009
Externally publishedYes
Event26th International Symposium on Rarefied Gas Dynamics, RGD26 - Kyoto, Japan
Duration: Jul 20 2008Jul 25 2008


  • Condensation
  • DSMC
  • Kinetic theory

ASJC Scopus subject areas

  • General Physics and Astronomy


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