Abstract
In this study, the methanol spray flame in a chamber of the NIST was modelled, and the results were compared and validated by the experimental data. Features of this flame, including the boundary conditions of the inlet air and the spray, were analyzed according to the experiment for the numerical study. The standard k-e model with the enhanced wall treatment was employed for the simulation of the turbulence. The predicted mean velocity components of the air flow at various downstream elevations showed good agreements with the experiment. For the spray and combustion, the Euler-Lagrange method and the steady flamelet model were employed. The droplet number density, SMD, and the mean axial and radial velocities of the droplets were compared to the measured data. In addition, the influence of the source term of the mixture fraction variance due to evaporation was investigated in this case. The results showed that including the source term, the peak mean mixture fraction variance, occurring in the lower part of the flame increased from 0.013 to 0.016 and the peak temperature increased by 10K.
| Original language | English |
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| Title of host publication | Proceedings European Combustion Meeting 2011 |
| Editors | T. Griffiths |
| Place of Publication | Cardiff, UK |
| Publisher | British Section of the Combustion Institute |
| Number of pages | 8 |
| Publication status | Published - 28 Jun 2011 |
| Event | 5th European Combustion Meeting, ECM 2011 - Cardiff, United Kingdom Duration: 28 Jun 2011 → 2 Jul 2011 Conference number: 5 |
Conference
| Conference | 5th European Combustion Meeting, ECM 2011 |
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| Abbreviated title | ECM |
| Country/Territory | United Kingdom |
| City | Cardiff |
| Period | 28/06/11 → 2/07/11 |