TY - JOUR
T1 - A comparison of the numerical predictions of the supersonic combustion of Hydrogen using the S-A and SST κ - ω models
AU - Kumaran, K.
AU - Babu, V.
PY - 2009
Y1 - 2009
N2 - In the present work, the influence of the turbulence model on the numerical predictions of supersonic combustion of hydrogen in a model combustor is investigated. Three dimensional, compressible, turbulent, reacting flow calculations using the Shear Stress Transport (SST) κ - ω model have been carried out. The results are compared with earlier results obtained using the Spalart-Allmaras model. The effect of detailed chemistry on the predictions of heat release and combustion efficiency is also investigated for one injection scheme. The calculations show that the mixing and hence the heat release is over predicted by the SA model. Whereas, the peak values for pressure and temperature are predicted better by the SST κ - ω model. This investigation demonstrates the importance of the use of a two equation turbulence model over a one equation model for studying such complex flow phenomena.
AB - In the present work, the influence of the turbulence model on the numerical predictions of supersonic combustion of hydrogen in a model combustor is investigated. Three dimensional, compressible, turbulent, reacting flow calculations using the Shear Stress Transport (SST) κ - ω model have been carried out. The results are compared with earlier results obtained using the Spalart-Allmaras model. The effect of detailed chemistry on the predictions of heat release and combustion efficiency is also investigated for one injection scheme. The calculations show that the mixing and hence the heat release is over predicted by the SA model. Whereas, the peak values for pressure and temperature are predicted better by the SST κ - ω model. This investigation demonstrates the importance of the use of a two equation turbulence model over a one equation model for studying such complex flow phenomena.
KW - Hydrogen
KW - Numerical simulations
KW - Supersonic combustion
UR - http://www.scopus.com/inward/record.url?scp=69049100177&partnerID=8YFLogxK
U2 - 10.1504/PCFD.2009.027765
DO - 10.1504/PCFD.2009.027765
M3 - 文章
AN - SCOPUS:69049100177
SN - 1468-4349
VL - 9
SP - 475
EP - 489
JO - Progress in Computational Fluid Dynamics
JF - Progress in Computational Fluid Dynamics
IS - 8
ER -