Conclusions
Thus a change from calculation for the usually adopted fictitious fluid motion vertically to the actual with the use of the new integral relationship and resultant stresses inside the flow makes it possible: to refer the calculations of fluid discharge to the site of the orifice (Eq. (15)) and for the first time in hydraulic schemes to eliminate the discharge coefficients: to reveal the source of possible excessive increase of velocity and to determine its value as a function of the degree of the unsteady pressure relief background and contraction forces from the centrifugal forces; to substantiate the theoretical reserves of the capacity of orifices of hydraulic structures.
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Additional information
Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 7, pp. 33–36, July, 1992.
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Lyapin, A.N. Capacity of hydraulic structures. Hydrotechnical Construction 26, 437–442 (1992). https://doi.org/10.1007/BF01545019
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DOI: https://doi.org/10.1007/BF01545019