摘要
为了提高射流的冲蚀能力,利用自制的自激振荡喷嘴,在淹没条件下进行水射流冲蚀自制砂浆试块的试验研究,得到不同工况下的水射流冲蚀效果。结果表明,靶距对冲蚀效果有明显的影响;脉冲射流的冲蚀体积与冲蚀深度随着腔长的增加,先降低再增加,到达峰值后逐渐递减,在腔长LC=4.5 mm时,冲蚀体积达到最大;在相同工况下,脉冲射流的冲蚀体积比连续射流提高约37.1%～52.3%。
In order to improve the jet erosion ability, the mortar block water jet eroding experiments were carded out by using own developed self-excited oscillation nozzle under submergence conditions, and the jet erosion effects were obtained under different operating conditions. The experimental results showed that target distance had obvious effects on the erosion effect; the jet erosion volume and erosion depth firstly decreased with the chamber length increasing, then increased, and gradually decreased after reaching the peak value; the erosion volume reaches the maximum at Lc=4.5 mm; and pulse jet erosion volume increases by about 37.1%-52.3% than the continuous jet.
出处
《湖南工业大学学报》
2013年第3期41-45,共5页
Journal of Hunan University of Technology
基金
湖南省自然科学基金资助项目(13JJ9013)
湖南省教育厅科研基金资助项目(12C0066)
湖南工业大学大学生研究性学习和创新性实验计划基金资助项目(湖工大教字[2012]19-31)
关键词
淹没条件
自激脉冲射流
腔长
冲蚀
submergence conditions
self-excited pulsed jet
cavity length
erosion
