Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
Bulk viscosity in carbon dioxide is studied using the accurate kinetic theory method. Complex structure of the CO2 molecule and various channels for vibrational relaxation are taken into account while calculating the vibrational relaxation time. It is shown that in the general case, the bulk viscosity coefficient cannot be represented as a sum of independent contributions of rotational and vibrational degrees of freedom. The predicted ratio of bulk and shear viscosity coefficients does not exceed 5 for temperatures lower that 2000â...K. Thus we put in question the widely used assumption about the high ratio of bulk and shear viscosity coefficients in CO2 at low temperature.
Original language | English |
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Title of host publication | 31st International Symposium on Rarefied Gas Dynamics, RGD 2018 |
Publisher | American Institute of Physics |
Number of pages | 8 |
ISBN (Print) | 9780735418745 |
DOIs | |
State | Published - 6 Aug 2019 |
Event | 31st International Symposium on Rarefied Gas Dynamics, RGD 2018 - Glasgow, United Kingdom Duration: 23 Jul 2018 → 27 Jul 2018 |
Name | AIP Conference Proceedings |
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Publisher | American Institute of Physics |
Number | 1 |
Volume | 2132 |
ISSN (Print) | 0094-243X |
Conference | 31st International Symposium on Rarefied Gas Dynamics, RGD 2018 |
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Country/Territory | United Kingdom |
City | Glasgow |
Period | 23/07/18 → 27/07/18 |
ID: 45793903