摘要
利用高压水射流船舶除锈取代目前的人工打砂除锈势在必行。介绍了水射流的基本结构并根据高压纯水射流除锈的工况,利用计算流体动力学（CFD）方法对高压水射流进行了模拟仿真。通过仿真介绍了流场中高压水射流的特性以及靶面的受力情况。最后,为了达到良好的除锈效果,对高压水射流的靶距和入射角度进行优化,得出在指定条件下最优靶距应为15~20mm,最优入射角度（射流与靶面法线的夹角）应为30°。
It is necessary to replace traditional grit- blasting for high- pressure water jet for ship hull derusting. This paper introduces the structure of water jet, and carries out the numerical simulation of high- pressure water jet for ship hull derusting. The simulation includes the high - pressure water jet characteristics and the impact pressure distribution on the target. In addition, the stand- off distance and injection angles of high- pressure water jet for derusting are also optimized. After optimization, the stand - of/distance is specified at between 15 mm and 20 mm and the injection angle （angle between water jet and the normal of target） is 30 degrees.
出处
《机械与电子》
2016年第2期24-27,共4页
Machinery & Electronics
关键词
高压水射流
CFD
除锈
参数优化
high- pressure water jet
CFD
derusting
parameters optimization
