本文对浮力作用下的矩形射流扩散燃烧过程进行了三维大涡模拟。
The buoyancy effects on horizontal jet diffusion flames are investigated using large eddy simulation.
并在此基础上，利用射流扩散理论导出平衡冲刷坑堆丘位置的预报公式。
Based on the theory of jet diffusion the formula for predicting the position of dune in equilibrium scour pit are deduced theoretically.
对射流核长度、射流扩散角与出口弗劳德数、淹没水深之间的关系进行了探讨。
The relations among the length of the core region, the diffusion angle and the froude number and the submerged depth were also studied.
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