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力学与实践 ›› 2009, Vol. 31 ›› Issue (2): 17-21.doi: 10.6052/1000-0879-lxxb2007-623

• 应用研究 • 上一篇    下一篇

超音速气流粉碎喷嘴数值模拟

王利文,潘家祯,王子刚,张瑞十   

  1. 华东理工大学,机械与动力工程学院
  • 收稿日期:2007-12-17 修回日期:2009-04-02 出版日期:2009-04-10 发布日期:2011-09-06
  • 通讯作者: 王利文 E-mail:liwen_wang@mail.ecust.edu.cn

Simulated numerically of influence of the inner structure of ultrasonic nozzles on the characteristics of the Air Miller

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  • Received:2007-12-17 Revised:2009-04-02 Online:2009-04-10 Published:2011-09-06

摘要: 对气流粉碎装置的喷嘴结构和参数进行设计与优化,采用流体动力学软件对所设计喷嘴进行流场模拟,对所喷嘴效果进行检验。分别讨论了锥顶角和内腔造型对超音速喷嘴性能的影响,通过结果比较得出,入口压力3.5MPa、入口直径为6mm的喷嘴为设计的最佳喷嘴。超音速喷嘴锥顶角在8度到12度之间变化时,对喷嘴的性能影响不大,内腔造型为光滑曲面的超音速喷嘴性能最佳。

Abstract: The paper optimizes the structure and parameters of nozzle at jet mill device with software and theories of engineering thermodynamics examining the performance of the designed nozzle by simulating its flow fields with liquid simulated software as well as discussing the effection of passage shape and diffuse angle on supersonic nozzle. The optimized nozzle was then designed to be one with opening pressure of 3.5MPa and opening diameter of 6mm after comparing different simulations. When changing between 8°and 12°, the diffuse angle poses little effect on the performance of the designed supersonic nozzle. And when it is of curve shape, the passage shape betters the performance of the supersonic nozzle.