水资源与水工程学报2024，Vol.35Issue(2)：217-224,8.DOI:10.11705/j.issn.1672-643X.2024.02.25
凸台类型对离散型流道叠片过滤器水头损失的影响
Effects of convex type on head loss of disc filter with discrete flow channels
摘要
Abstract
The disc filter with discrete flow channels is a novel device that produces a relatively small wa-ter head loss.The regular distribution of the convex structures on the disc surface is one of the main fac-tors affecting head loss of the disc filter.In order to find out the influence of different types of the convex structure on the internal flow field and further reduce the head loss of the disc filter,a physical experi-ment and numerical simulation were conducted to analyze the head loss and flow field distribution charac-teristics of five different convex structures,including the original right triangle,rhombus,oval,upper tri-angle and lower triangle.The results show that the lower triangle is conducive to reducing the contact length between the convex structure and the main flow zone and the turbulence kinetic energy intensity,as well as the head loss of the disc filter with discreet flow channels.Compared with the original right tri-angle,the contact length and maximum turbulence kinetic energy of the four optimized convex structures decreased by 9.61%-36.73%and 25.87%-49.96%,respectively,among which,those of the lower triangle decreased by 29.99%and 49.96%.According to the simulation,the head loss coefficient of the right triangle was the largest,and that of the lower triangle was the smallest,which also had the highest energy conversion efficiency.Under clear water condition,the head loss of the disc filter with lower trian-gle structure decreased by 14.89%-21.93%compared with the original structure.The research find-ings can provide some reference for the structural optimization of disc filters with discrete flow channels.关键词
叠片过滤器/离散型流道结构/凸台类型/水力性能/数值分析Key words
disc filter/discrete flow channel/convex structure type/hydraulic performance/numerical analysis分类
农业科技引用本文复制引用
金嫣婧,刘宁宁,张金珠,王振华,张继红,李淼,李云霞..凸台类型对离散型流道叠片过滤器水头损失的影响[J].水资源与水工程学报,2024,35(2):217-224,8.基金项目
兵团重大科技项目(2021AA003) （2021AA003）
国家重点研发计划课题(2022YFD1900405) （2022YFD1900405）
兵团农业GG项目(2023AA305) （2023AA305）
