Viscosity of dissociating gasesRecent calculations of the viscosity of iodine suggest that existing predictions of viscosities of high-temperature (up to several thousands degrees) gases should be revised, with much more attention being paid to the atomic and molecular interactions in the gas. As the gas starts to dissociate, the frequency of atom-molecule and atom-atom interactions increases, and those collisions must be taken into account in calculations of viscosity at high temperature. In this study, the iodine is chosen as an example, and the dependence of its viscosity on the gas dissociation degree is shown. Several possible channels for I+I interaction are considered in addition to I+I2 and I2+I2 collisions, and the resulting collision integrals are averaged over all the important channels.
Document ID
19920065210
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kang, S. H. (NASA Headquarters Washington, DC United States)
Kunc, J. A. (Southern California, University Los Angeles, CA, United States)