首页 / 资料库 / 文献详情

The Study on Pipe Sudden Enlargement Local Resistant Coefficient

ZhaoBao-feng、JinYing-zi

1999东北农业大学学报：英文版Engineering被引 2

摘要

During the design of pipeline,the determination of local resistent coefficient is often come arcoss.The sudden enlargement local resistant coefficient ξ1=[1-A1/A2]^2 is determined through theory.In the paper,the sudden enlargement local resistant coefficient under the conditions of three kinds of A1/A2 was studied in experiment.In the end,the result shows that ξ1 is related not only to two flow cross sections,but also to the velocity.Thyough experimental research,the relationship between ξ1,A1/A2 and V1 was determined.In a word,the hydraulic calculation of pipeline can be done by taking correspondent ξ1,according to the design velocity V1 and A1/A2.

引用本文（GB/T 7714）