Numerical simulations of buoyant reactive jets with sidewall effects

Zhang, H P and Jiang, X and Wang, W and Yang, Y and Xu, L and Fan, W C (2004) Numerical simulations of buoyant reactive jets with sidewall effects. Chinese Science Bulletin, 49 (19). pp. 2105-2109. ISSN 1001-6538

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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.

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Chinese Science Bulletin
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21 Nov 2011 11:25
Last Modified:
15 Sep 2023 04:01