| 淹没磨料射流的空蚀能力分析 |
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| 引用本文： | 向文英,李晓红,卢义玉. 淹没磨料射流的空蚀能力分析[J]. 重庆大学学报(自然科学版), 2009, 32(3): 299-302 |
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| 作者姓名： | 向文英 李晓红 卢义玉 |
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| 作者单位： | 向文英,XIANG Wen-ying(重庆大学城市建设与环境工程学院,重庆,400030);李晓红,卢义玉,LI Xiao-hong,LU Yiyu(重庆大学资源与环境科学学院,重庆,400030) |
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| 基金项目： | 国家自然科学工作者基金，国家自然科学基金专项创新研究群体基金 |
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| 摘 要： | 淹没磨料射流的空蚀能力决定着磨料射流在水下切割能力的强弱.采用高压密闭容器模拟水下环境,利用磨料射流系统、数码摄像系统,实验研究了淹没磨料射流的紊流特性,进行了空蚀能力的理论分析.探讨了淹没磨料射流紊流系数随泵压、围压的变化规律.研究表明,文丘里型空化喷嘴的射流系统中,相同条件下,5 MPa以上淹没磨料射流的空化数较纯水空化射流大,磨料的存在使淹没磨料射流空蚀能力降低.
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| 关 键 词： | 紊流 淹没磨料射流 空化 空蚀能力 |
Cavitation capacity of submerged abrasive water jets |
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| XIANG Wen-yinga,LI Xiao-hongb,LU Yi-yub. Cavitation capacity of submerged abrasive water jets[J]. Journal of Chongqing University(Natural Science Edition), 2009, 32(3): 299-302 |
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| Authors: | XIANG Wen-yinga LI Xiao-hongb LU Yi-yub |
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| Affiliation: | a.College of Urban Construction and Environmental Engineering;b.College of Resources and Environmental Science;Chongqing University;Chongqing 400030;P.R.China |
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| Abstract: | The incising ability of abrasive water jets submerged under water depend on their erosive capability.The turbulent flow characteristics of submerged abrasive water jets is experimented with using a system of abrasive water jets in a high-pressure obturation container and a numeric photography system.The erosive capability of submerged abrasive water jets also is analyzed theoretically.We discuss the turbulence coefficient changes at various pump and ambient pressures.The results show that,under identical co... |
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| Keywords: | turbulence submerged abrasive water jets cavitation erosion capability |
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