Wall temperature jump in polyatomic gas flows

J. Gilbert Méolens, S. Kokou Dadzie

Research output: Contribution to conferencePaper

Abstract

This article deals with the calculations of the temperature jump at the wall for gas flows in the slip regime. The analytical calculations are based on kinetic boundary conditions developed especially for polyatomic molecules. When compared to an expression previously obtained for unstructured molecules, the polyatomic molecule temperature jump reveals supplementary terms of bulk viscosity type due to the internal mode excitation. These terms may be important in high speed flows or in gas flows displaying significant relative density variation at the wall.
LanguageEnglish
Number of pages6
Publication statusPublished - 21 Jul 2006
Event25th International Symposium on Rarefied Gas Dynamics - St Petersburg, Russia
Duration: 21 Jul 200628 Jul 2006

Conference

Conference25th International Symposium on Rarefied Gas Dynamics
CitySt Petersburg, Russia
Period21/07/0628/07/06

Fingerprint

polyatomic gases
polyatomic molecules
wall temperature
gas flow
slip
high speed
viscosity
boundary conditions
temperature
kinetics
excitation
molecules

Keywords

  • wall temperature
  • polyatomic gas flows
  • gas flows
  • pumps

Cite this

Méolens, J. G., & Dadzie, S. K. (2006). Wall temperature jump in polyatomic gas flows. Paper presented at 25th International Symposium on Rarefied Gas Dynamics, St Petersburg, Russia, .
Méolens, J. Gilbert ; Dadzie, S. Kokou . / Wall temperature jump in polyatomic gas flows. Paper presented at 25th International Symposium on Rarefied Gas Dynamics, St Petersburg, Russia, .6 p.
@conference{0bb286f2009844959a78d6f6585b2f47,
title = "Wall temperature jump in polyatomic gas flows",
abstract = "This article deals with the calculations of the temperature jump at the wall for gas flows in the slip regime. The analytical calculations are based on kinetic boundary conditions developed especially for polyatomic molecules. When compared to an expression previously obtained for unstructured molecules, the polyatomic molecule temperature jump reveals supplementary terms of bulk viscosity type due to the internal mode excitation. These terms may be important in high speed flows or in gas flows displaying significant relative density variation at the wall.",
keywords = "wall temperature, polyatomic gas flows, gas flows, pumps",
author = "M{\'e}olens, {J. Gilbert} and Dadzie, {S. Kokou}",
note = "ISBN: 978-5-7692-0924-6; 25th International Symposium on Rarefied Gas Dynamics ; Conference date: 21-07-2006 Through 28-07-2006",
year = "2006",
month = "7",
day = "21",
language = "English",

}

Méolens, JG & Dadzie, SK 2006, 'Wall temperature jump in polyatomic gas flows' Paper presented at 25th International Symposium on Rarefied Gas Dynamics, St Petersburg, Russia, 21/07/06 - 28/07/06, .

Wall temperature jump in polyatomic gas flows. / Méolens, J. Gilbert; Dadzie, S. Kokou .

2006. Paper presented at 25th International Symposium on Rarefied Gas Dynamics, St Petersburg, Russia, .

Research output: Contribution to conferencePaper

TY - CONF

T1 - Wall temperature jump in polyatomic gas flows

AU - Méolens, J. Gilbert

AU - Dadzie, S. Kokou

N1 - ISBN: 978-5-7692-0924-6

PY - 2006/7/21

Y1 - 2006/7/21

N2 - This article deals with the calculations of the temperature jump at the wall for gas flows in the slip regime. The analytical calculations are based on kinetic boundary conditions developed especially for polyatomic molecules. When compared to an expression previously obtained for unstructured molecules, the polyatomic molecule temperature jump reveals supplementary terms of bulk viscosity type due to the internal mode excitation. These terms may be important in high speed flows or in gas flows displaying significant relative density variation at the wall.

AB - This article deals with the calculations of the temperature jump at the wall for gas flows in the slip regime. The analytical calculations are based on kinetic boundary conditions developed especially for polyatomic molecules. When compared to an expression previously obtained for unstructured molecules, the polyatomic molecule temperature jump reveals supplementary terms of bulk viscosity type due to the internal mode excitation. These terms may be important in high speed flows or in gas flows displaying significant relative density variation at the wall.

KW - wall temperature

KW - polyatomic gas flows

KW - gas flows

KW - pumps

M3 - Paper

ER -

Méolens JG, Dadzie SK. Wall temperature jump in polyatomic gas flows. 2006. Paper presented at 25th International Symposium on Rarefied Gas Dynamics, St Petersburg, Russia, .