Flow Velocity Coefficient Research on the Coexistence of Pipe Flow and Flow around Pipe

Abstract:

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Based on Darcy - Weisbach route losses equation, this test is focused on the mixed-flow problems at low speed in big flow field, designing the experiment scheme, introducing its principle, and setting up the test rig. According to the test result data, we put forward the definition of flow speed coefficient and draw its curves, and described some related issues, such as reverse pressure phenomenon,reliability of flow simulation, roughness, and so on. The results showed that the flow speed in the pipe will get higher with the flow field increasing, and smaller relative roughness pipes. The flow speed coefficient x≤1 and its curves is monotone decreasing function and will be closer to a fixed value at last with V0’s increasing. This test will provide theoretical basis for increasing fluid energy’s utilization.

Info:

Periodical:

Advanced Materials Research (Volumes 204-210)

Edited by:

Helen Zhang, Gang Shen and David Jin

Pages:

746-749

DOI:

10.4028/www.scientific.net/AMR.204-210.746

Citation:

H. B. Gao et al., "Flow Velocity Coefficient Research on the Coexistence of Pipe Flow and Flow around Pipe", Advanced Materials Research, Vols. 204-210, pp. 746-749, 2011

Online since:

February 2011

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Price:

$35.00

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