The re- search provides an important experimental basis for the design and improvement of swirl pressurenozzle.
实验结果可以为旋流压力式喷嘴设计和改进提供重要的实验依据。
2
Simulation test shows that, (1) fixing ultra-high pressurenozzle on the bit edge is helpful to penetration with PDC cutting teeth;
室内模拟试验表明（1）超高压喷嘴安装在钻头刀翼上能辅助PDC切削齿破岩；
3
The experimental investigation on the low pressure spray characteristics of swirl pressurenozzle was carried out with the water as the working fluid of spray.