流体机械

2002, (05) 25-27+37

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旋转钻头非自由多股淹没射流的计算分析
Numerical Research on Emerged Multi-stream Jetting at Limited Bottom-hole Space of Drill Bits

谢翠丽,杨爱玲,王宏光,陈康民
Xie Cuili Yang Ailing Wang Hongguang Chen Kangmin

摘要(Abstract):

为了研究非自由淹没多股射流流场的运动规律 ,了解非自由射流固壁及射流方式对流场结构的影响 ,利用计算机模拟了三维多股射流的几种情况 ,通过分析 ,揭示了流场的结构形成过程与运动规律
In order to know the flow field of multi stream emerged jetting from rotating drill bits and find out the effect of solid walls in limited jetting space on flow field construction, several cases of three dimensioned multi stream jetting are simulated by computer. The forming process of flow and related rules of fluid motion are showed on the beasis of simulation results.

关键词(KeyWords): 射流;钻头;流场;数值模拟
jetting drill bit;flow field;numerical simulation

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作者(Author): 谢翠丽,杨爱玲,王宏光,陈康民
Xie Cuili Yang Ailing Wang Hongguang Chen Kangmin

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