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A platform for research: civil engineering, architecture and urbanism
Shapes of deep rectangular water conduit intakes
Conclusions 1. Theoretically obtained non-separation outlines of pressure conduits intake headings recommended in the article [1], have excessive width (funnelling). It can be decreased if the design of the above-mentioned outlines is done by the N. E. Zhukovskii equations on the assumption that there is a straight flow line in the stream and there are real values of parameter K1 corresponding to that line. 2. Coefficients Cv.max' C v.max ′ and Kcr used in the article [1] for the evaluation of vacuum and cavitational qualities of deep conduits intakes do not fully reflect the physics of the phenomena (especially for a case of a considerable pressure pulsation increasing with separation of flow from conduit walls). From our point of view, the vacuum coefficient Kvac and the coefficient Kcav for the start of cavitation are best suited for an actual evaluation because they are directly connected with appearance of vacuum and cavitation in the conduit.
Shapes of deep rectangular water conduit intakes
Conclusions 1. Theoretically obtained non-separation outlines of pressure conduits intake headings recommended in the article [1], have excessive width (funnelling). It can be decreased if the design of the above-mentioned outlines is done by the N. E. Zhukovskii equations on the assumption that there is a straight flow line in the stream and there are real values of parameter K1 corresponding to that line. 2. Coefficients Cv.max' C v.max ′ and Kcr used in the article [1] for the evaluation of vacuum and cavitational qualities of deep conduits intakes do not fully reflect the physics of the phenomena (especially for a case of a considerable pressure pulsation increasing with separation of flow from conduit walls). From our point of view, the vacuum coefficient Kvac and the coefficient Kcav for the start of cavitation are best suited for an actual evaluation because they are directly connected with appearance of vacuum and cavitation in the conduit.
Shapes of deep rectangular water conduit intakes
Dul'nev, V. B. (author)
Hydrotechnical Construction ; 3 ; 456-459
1969-05-01
4 pages
Article (Journal)
Electronic Resource
English
Shapes of deep rectangular water conduit intakes
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