In order to explore the effect of ambient pressure on jet flow field in deep well and ultra-deep well, a physical model for flow field of confined water jet at bottom hole was established.
考虑到深井、超深井中井底围压对射流流场有一定的影响，建立了井底受限射流流场的物理模型。
The effect of ambient pressure on spray Angle, axial velocity distribution of droplets and performance of the thruster are analyzed.
分析推力器工作环境压力对喷雾扩散角、液滴轴向速度和推力器性能的影响。
While ambient pressure is less than the threshold pressure, the effect of ambient pressure on the spray process, velocity distribution of droplets and performance of the thruster can be ignored.
当工作环境压力低于一定值时，其对喷雾过程的影响可以忽略，而推力器性能基本保持不变。
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