Numerical and experimental investigation on flow field characteristics of organ pipe nozzle

27th IAHR Symposium on Hydraulic Machinery and Systems

Fang, Z.L.^1,2 ; Kang, Y.^1,2 ; Wang, X.C.^1,2 ; Li, D.^1,2 ; Hu, Y.^1,2 ; Huang, M.^1,2 ; Wang, X.Y.^1,2

School of Power and Mechanical Engineering, Wuhan University, No.8 Donghu South Road, Wuhan

430072, China^1

Key Laboratory of Hubei Province for Water Jet TheoryandNew Technology, No.8 Donghu South Road, Wuhan

430072, China^2

关键词: Different structure;    Experimental investigations;    Flow field characteristics;    Numerical simulated;    Organ pipes;    Self-resonant cavitating nozzle;    Special applications;    Water jet technologies;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/22/5/052020/pdf
DOI  :  10.1088/1755-1315/22/5/052020

来源: IOP

【 摘 要 】

As a new technology that is developed rapidly in recent decades, water jet technology is widely applied in coal, petroleum, chemical industry, aviation, construction, etc. Self-resonant cavitating jet, by playing cavitation, is capable of great destruction. As a typical kind of self-resonant cavitating nozzle, organ pipe nozzle has its special application. In this paper, the flow field of organ pipe nozzle was numerical simulated. Nozzles with different structures were manufactured according to simulation results; their performances were tested on different driving pressure under the condition of submerging. The results showed that working pressure, cavity length and cavity diameter had influence on the characteristics of organ pipe nozzle and it exited optimum parameters.