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Indexed by:期刊论文

Date of Publication:2008-06-01

Journal:JOURNAL OF HYDRODYNAMICS

Included Journals:SCIE

Volume:20

Issue:3

Page Number:293-298

ISSN No.:1001-6058

Key Words:shock wave; abrupt deflection of supercritical water flow; slopping channel

Abstract:The effect of the bottom slope on abrupt deflected supercritical water flow was experimentally and theoretically studied. Model tests were conducted in a flume of 1.2 m wide and 2.6 m long with sloped bottom at an angle 35.54 degrees, its length of deflector was 0.2 m and the deflection angles were 15 degrees and 30 degrees. An approximate method for calculatjng the shock wave angle and depth ratio of the abrupt deflected supercritical water flow was suggested, and a correction coefficient for the hydrodynamic pressure was introduced to generalize the momentum equation in the direction perpendicular to the shock front. It must be noticed that in the sloped channel the shock wave angle and the depth ratio are no longer constant as those in the horizontal channels, but slowly change along the shock front. The calculated results are in good agreement with measured data.