Abstract
The catalytically stabilised thermal combustion (CST) of lean hydrogen-air mixtures was investigated numerically in a turbulent channel flow configuration using a two-dimensional elliptic model with detailed heterogeneous and homogeneous chemical reactions. Comparison between turbulent and laminar cases having the same incoming mean properties shows that turbulence inhibits homogeneous ignition due to increased heat transport away from the near-wall layer. The peak root-mean-square temperature and species fluctuations are always located outside the extent of the homogeneous reaction zone indicating that thermochemical fluctuations have no significant influence on gaseous combustion. (author) 4 figs., 6 refs.
Mantzaras, I;
Benz, P;
Schaeren, R;
Bombach, R
[1]
- Paul Scherrer Inst. (PSI), Villigen (Switzerland)
Citation Formats
Mantzaras, I, Benz, P, Schaeren, R, and Bombach, R.
An investigation of turbulent catalytically stabilized channel flow combustion of lean hydrogen - air mixtures.
Switzerland: N. p.,
1999.
Web.
Mantzaras, I, Benz, P, Schaeren, R, & Bombach, R.
An investigation of turbulent catalytically stabilized channel flow combustion of lean hydrogen - air mixtures.
Switzerland.
Mantzaras, I, Benz, P, Schaeren, R, and Bombach, R.
1999.
"An investigation of turbulent catalytically stabilized channel flow combustion of lean hydrogen - air mixtures."
Switzerland.
@misc{etde_685693,
title = {An investigation of turbulent catalytically stabilized channel flow combustion of lean hydrogen - air mixtures}
author = {Mantzaras, I, Benz, P, Schaeren, R, and Bombach, R}
abstractNote = {The catalytically stabilised thermal combustion (CST) of lean hydrogen-air mixtures was investigated numerically in a turbulent channel flow configuration using a two-dimensional elliptic model with detailed heterogeneous and homogeneous chemical reactions. Comparison between turbulent and laminar cases having the same incoming mean properties shows that turbulence inhibits homogeneous ignition due to increased heat transport away from the near-wall layer. The peak root-mean-square temperature and species fluctuations are always located outside the extent of the homogeneous reaction zone indicating that thermochemical fluctuations have no significant influence on gaseous combustion. (author) 4 figs., 6 refs.}
place = {Switzerland}
year = {1999}
month = {Aug}
}
title = {An investigation of turbulent catalytically stabilized channel flow combustion of lean hydrogen - air mixtures}
author = {Mantzaras, I, Benz, P, Schaeren, R, and Bombach, R}
abstractNote = {The catalytically stabilised thermal combustion (CST) of lean hydrogen-air mixtures was investigated numerically in a turbulent channel flow configuration using a two-dimensional elliptic model with detailed heterogeneous and homogeneous chemical reactions. Comparison between turbulent and laminar cases having the same incoming mean properties shows that turbulence inhibits homogeneous ignition due to increased heat transport away from the near-wall layer. The peak root-mean-square temperature and species fluctuations are always located outside the extent of the homogeneous reaction zone indicating that thermochemical fluctuations have no significant influence on gaseous combustion. (author) 4 figs., 6 refs.}
place = {Switzerland}
year = {1999}
month = {Aug}
}