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LARGE EDDY SIMULATION OF EVAPORATING SPRAY JETS

机译:蒸发喷雾射流的大涡模拟

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Large Eddy Simulations (LES) of an evaporating spray jet is performed using an explicit filtering approach for carrier phase equations. Droplets are treated as representative point particles without any modeling of particle sub-grid-scale (SGS) evolution. The simulation of a recent benchmark dilute acetone spray experiment showed that close quantitative agreement could be obtained of the downstream self-preserving turbulent state. Several other simulations are performed to understand the effect of inflow fluctuation level, evaporation and droplet size on the relaxation to the self-preserving state.
机译:蒸发喷雾的大涡流模拟(LES)使用用于载波相位方程的显式滤波方法执行。在没有对粒子亚网格规模(SGS)演化进行任何建模的情况下,将液滴视为具有代表性的点粒子。最近的基准稀丙酮喷雾实验的模拟表明,下游自保持湍流状态可以得到密切的定量一致。进行了其他一些模拟,以了解流入波动水平,蒸发和液滴尺寸对松弛至自保持状态的影响。

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