首頁 > 期刊 > 自然科學與工程技術 > 工程科技II > 機械工業 > 排灌機械工程學報 > Orthogonal optimization of flow uniformity at exit section of elbow-inlet passages 【正文】
Orthogonal optimization of flow uniformity at exit section of elbow-inlet passages
YAN; Hao; CHEN; Liang; CHAI; Liping; ZHANG; Yu; LI; Qiang; SHI; Haixia School; of; Mechanical; Engineering; Hefei; University; of; Technology; Hefei; Anhui; 230009; China; Anhui; Provincial; Science; and; Technology; Department; Hefei; Anhui; 230091; China
- large
- vertical
- pumping
- station
- passage
摘要：Elbow-inlet passage is widely used in large drainage pumping stations.Flow uniformity at the exit section directly determines its hydraulic performance.Flow uniformity must be optimized to improve the operational efficiency of the large axial-flow pumping station.Modeling and numerical simulation methods were used to investigate the elbow-inlet passage,and the accuracy of the calculation results was verified.The key geometric parameters affecting the uniformity of the flow were optimized by the orthogonal experiment design.The optimal schemes were obtained and compared with the original scheme.The results show that flow uniformity V u after optimization is 95.41%,which is increased by 1.04%.The pumping station efficiency is increased by 1.89%,thereby confirming the applicability and accuracy of the proposed scheme,especially for the optimization of flow uniformity of the exit section of the elbow-inlet passage.
- large
- vertical
- pumping
- station
- passage
摘要：Elbow-inlet passage is widely used in large drainage pumping stations.Flow uniformity at the exit section directly determines its hydraulic performance.Flow uniformity must be optimized to improve the operational efficiency of the large axial-flow pumping station.Modeling and numerical simulation methods were used to investigate the elbow-inlet passage,and the accuracy of the calculation results was verified.The key geometric parameters affecting the uniformity of the flow were optimized by the orthogonal experiment design.The optimal schemes were obtained and compared with the original scheme.The results show that flow uniformity V u after optimization is 95.41%,which is increased by 1.04%.The pumping station efficiency is increased by 1.89%,thereby confirming the applicability and accuracy of the proposed scheme,especially for the optimization of flow uniformity of the exit section of the elbow-inlet passage.
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