Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Large Eddy Simulation of Diesel Fuel Injection and Mixing in a HSDI Engine
AU - Jagus, Krzysztof
AU - Jiang, Xi
PY - 2011
Y1 - 2011
N2 - The paper aims to assess the performance of large eddy simulation (LES) in predicting the unsteady reacting flows in internal combustion engines. The incompatibility due to the turbulence dissipation was avoided in the k-equation LES formulation. Two versions of the LES have been tested with different filtering. The cell-specific filtering was found to give realistic prediction of the instantaneous temperature and pressure field during the combustion process. The coupling of combustion heat release, temperature field and turbulent flow field was found to be strong in the LES predicted flow and combustion fields which showed wrinkled flame structures. The formulation gives improved agreement with available experimental data.
AB - The paper aims to assess the performance of large eddy simulation (LES) in predicting the unsteady reacting flows in internal combustion engines. The incompatibility due to the turbulence dissipation was avoided in the k-equation LES formulation. Two versions of the LES have been tested with different filtering. The cell-specific filtering was found to give realistic prediction of the instantaneous temperature and pressure field during the combustion process. The coupling of combustion heat release, temperature field and turbulent flow field was found to be strong in the LES predicted flow and combustion fields which showed wrinkled flame structures. The formulation gives improved agreement with available experimental data.
KW - Large eddy simulation
KW - Diesel
KW - Injection
KW - Mixing
U2 - 10.1007/s10494-011-9338-z
DO - 10.1007/s10494-011-9338-z
M3 - Journal article
VL - 87
SP - 473
EP - 491
JO - Flow, Turbulence and Combustion
JF - Flow, Turbulence and Combustion
SN - 1386-6184
IS - 2-3
ER -