Analysis of Flow Characteristics of Multi-stage Orifice Plate Based on Orthogonal Test
To reduce the cavitation and turbulent noise of the multi-stage orifice plate,the orthogonal test method was used to determine the influence of the opening arrangement,the plate thickness and spacing,and the shape of the holes on the cavitati-on and turbulent noise.The variation law of flow field parameters such as minimum pressure and turbulent kinetic energy were an-alyzed.The primary and secondary relationship of the influence of each parameter upon the flow field performance was obtained by the range analysis,and the optimization scheme of the cavitation and the turbulence noise was screened out.The results showed that the opening shape of the multi-stage orifice plate has a significant effect on cavitation under the condition of satisfying the flow capacity;appropriately increasing the thickness of the orifice plate and the plate spacing can suppress the generation of cavitation;increasing the multi-stage orifice plate spacing and opening spacing can make the flow smoother and reduce turbulent noise.
万方数据
维普
