利用渐近分析方法研究了远场来流引起的对流对过冷熔体中球状晶体的生长形态的影响。
The influence on the growth morphology of the spherical crystal in the undercooled melt imposed by the far field flow is studied by the asymptotic method.
结合探针信号的自相关函数,研究流场湍流结构,发现近尾可能存在大涡拟序结构,而在远尾则没有湍流。
By studying the autocorrelation function of the probe signal, it is found that the large eddy quasi ordering structure likely exists in near wake, but there is no turbulence in far wake.
网格滤波截断的亚格子湍能远小于流场总能量,验证了大涡模拟方法的有效性。
The sub-grid scale turbulent energy imposed by a box filter was found to be only a small portion of the total turbulent kinetic energy, which validates the numerical method.
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