εturbulent flow model and the wall surface function method to conduct the bottom of the well flow field numerical simulation research to different inclination angle single spray nozzle and multi-injection stream under drill bit static condition.
ε紊流模型及壁面函数法,在钻头静止条件下对不同倾角的单喷嘴射流及多喷嘴射流进行了井底流场数值模拟。
参考来源 - 提高微小井眼钻头破岩效率的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Finally, the models of non-self-excited pulsed nozzle and self-excited pulsed nozzle of rotating jet mixer are established for flow field numerical simulation.
最后，建立非自激脉冲喷嘴与自激脉冲喷嘴实体模型，对旋转射流搅拌器喷嘴内部流场进行数值模拟。
The parallel computation method was used for numerical simulation of flow field with moving boundary, and unstructured moving grids were generated by spring analogy method.
将并行计算方法应用于含运动边界流场的数值模拟，采用弹簧方法生成非结构运动网格。
Through numerical simulation, the characteristics of goaf flow field and gas transportation under J-shape and U-shape ventilation systems were analyzed.
通过数值模拟，对比分析了J型通风和u型通风条件下的采空区流场及瓦斯运移特征。
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