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 - Numerical simulations of buoyant reactive jets with sidewall effects
AU - Zhang, H P
AU - Jiang, X
AU - Wang, W
AU - Yang, Y
AU - Xu, L
AU - Fan, W C
PY - 2004/10
Y1 - 2004/10
N2 - The near field dynamics of buoyant reactive jets with adjacent sidewalls is investigated by time-dependent three-dimensional direct simulations. The physical problem is a fuel jet issuing vertically into an oxidant ambient environment in a corner configuration with sidewall boundaries. Simulation results are presented for two cases with different jet nozzle geometries: a corner-round reactive jet and a corner-square reactive jet with the same cross-sectional area on the nozzle plane. Buoyancy-induced large vortical structures evolve spatially in the flow field and transition to turbulence occurs downstream. Calculation of the mean flow properties shows that entrainment of the corner-round jet is stronger than that of the corner-square jet due to the stronger vortex deformation in the corner-round case.
AB - The near field dynamics of buoyant reactive jets with adjacent sidewalls is investigated by time-dependent three-dimensional direct simulations. The physical problem is a fuel jet issuing vertically into an oxidant ambient environment in a corner configuration with sidewall boundaries. Simulation results are presented for two cases with different jet nozzle geometries: a corner-round reactive jet and a corner-square reactive jet with the same cross-sectional area on the nozzle plane. Buoyancy-induced large vortical structures evolve spatially in the flow field and transition to turbulence occurs downstream. Calculation of the mean flow properties shows that entrainment of the corner-round jet is stronger than that of the corner-square jet due to the stronger vortex deformation in the corner-round case.
KW - buoyancy
KW - entrainment
KW - reactive jet
KW - numerical simulation
KW - TRANSITION
KW - DYNAMICS
KW - FLAMES
KW - PLUME
U2 - 10.1360/04we0008
DO - 10.1360/04we0008
M3 - Journal article
VL - 49
SP - 2105
EP - 2109
JO - Chinese Science Bulletin
JF - Chinese Science Bulletin
SN - 1001-6538
IS - 19
ER -