Research Article
Feb 1979
Supercritical Flow in Bends of Trapezoidal Section
Publication: Journal of the Engineering Mechanics Division
Volume 105, Issue 1
Abstract
Steady supercritical flow in circular bends of trapezoidal cross section is analyzed for the case in which the radius of curvature r0 of the center line is much larger than the undisturbed depth of flow h0. Supercritical flow in bends of trapezoidal cross section has been analyzed for the case ϵ=h0/r0≪1 and F0>2. It was found that an almost periodic pattern of crests exists along the outside edge that are exactly matched in magnitude and position by a pattern of depressions along the inside edge. The crests along the outside edge rise from near the undisturbed flow elevation to a maximum value near U²(2mh0+b)/(r0g) and back down again. The distance measured along the center line to the first peak is given by s=β(2mh0+b)F0 in which β is between 1.0 and 1.20.
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Published In
Journal of the Engineering Mechanics Division
Volume 105 • Issue 1 • February 1979
Pages: 43 - 54
Copyright
© 1979 American Society of Civil Engineers.
History
Published in print: Feb 1979
Published online: Feb 3, 2021
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Authors
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Charles W. Lenau, M.ASCE
Assoc Prof. of Civ. Engrg., Univ. of Missouri, Columbia, Mo.
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.