Experimental Research on Axial Flow Velocity and Hydraulic Energy Consumption in Annulus Flow Field  around Cylinder

doi:10.3969/j.issn.1001-5485.2015.04.010

JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI ›› 2015, Vol. 32 ›› Issue (4): 51-54.DOI: 10.3969/j.issn.1001-5485.2015.04.010

• HYDRAULICS • Previous Articles Next Articles

Experimental Research on Axial Flow Velocity and Hydraulic Energy Consumption in Annulus Flow Field around Cylinder

ZHANG Qi-qi¹,SUN Xi-huan², LI Yong-ye¹

1.School of Water Conservancy Sciences and Engineering, Taiyuan University of Technology,Taiyuan 030024, China;
2.Shanxi Water Conservancy Technical College, Yuncheng 044004, China

Received:2013-12-01 Revised:2014-03-05 Online:2015-04-01 Published:2015-04-21

Abstract

Abstract: To further improve the theory of annulus flow field of the flow around cylinder, we combined theoretical analysis with model test to research the annulus flow field around cylinder in the presence of different flow rates and annulus ratios. The variations of axial velocity and hydraulic loss along with the distance of measurement point to the cylinder center are obtained, and the fitting formulas describing the variations of axial velocity and hydraulic loss with flow rate and annulus ratio are given. The test results are consistent with the fitting formulas, and most of the correlation coefficients are above 0.95, indicating that the fitting formulas are feasible. The result is a test support for the theoretical research and practical application of the annulus flow field around cylinder.

Key words: cylinder, annulus flow field, axial flow velocity, hydraulic energy consumption, flow rate, annulus ratio

CLC Number:

TV134

ZHANG Qi-qi,SUN Xi-huan, LI Yong-ye. Experimental Research on Axial Flow Velocity and Hydraulic Energy Consumption in Annulus Flow Field around Cylinder[J]. JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI, 2015, 32(4): 51-54.

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Experimental Research on Axial Flow Velocity and Hydraulic Energy Consumption in Annulus Flow Field around Cylinder

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