Author(s): Zhiyong Dong; Yonggang Yang; Qiqi Chen; Bin Shi; Xiaohua Ma
Linked Author(s): Zhiyong Dong
Keywords: Square hole; Multi-hole orifice plate; Hole arrangement; Cavitation; Flow field
Abstract: This paper experimentally investigated hydraulic characteristics in working section of multi-square-hole orifice plates of hydrodynamic cavitation reactor by use of three-dimensional Particle Image Velocimetry (PIV) and High Speed Photography etc. in the Hydraulics Laboratory at Zhejiang University of Technology, China. Arrangements of holes in the orifice plates can be divided into diagonal, cross and checkerboard categories. The three-dimensional velocity distribution, pressure and cavitation characteristics for each arrangement of multi-hole orifice plates were measured by PIV system, pressure data acquisition system and multi-point pressure electronic scanivalve as well as high speed camera, and a comparison of hydraulic characteristics of the three categories of arrangements of the multi-hole orifice plates were made, which is of important reference value to the design of multi-hole orifice plates of hydrodynamic cavitation reactor.