Conclusions
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1.
As a result of an experimental investigation of a rather broad range, we obtained systematic information about the parameters of uniform rapid flow at the time of occurrence of aeration, which can be used for developing objective initial notions needed both when developing new and when evaluating existing aeration criteria.
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2.
The information obtained in the study indicate a fundamental error of aeration criteria of type (3) and type (4).
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3.
The experimental data of the study confirm by a new example the existence of a special law of resistance of uniform rapid unaerated flows in smooth-walled flumes and the earlier established values (6) of the parameters for which dependence (5) qualitatively and quantitatively describes this law.
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Literature cited
T. G. Voinich-Syanozhentskii and V. V. Sakvarelidze, “Aeration criteria of gradually varied rapid flows and their experimental check. Gradually varied nonuniform motion of aerated flows,” in: Transactions of Joint Conferences on Hydraulic Engineering [in Russian], Leningrad, No. 52 (1969).
O. M. Aivazyan and Kh. Zh. Makhmudov, “Velocity distribution of rapid flows in concrete canals,” Dokl. Akad. Nauk UzSSR, No. 8 (1985).
O. M. Aivazyan and Kh. Zh. Makhmuidov, “Investigation of hydraulic resistance of rapid unaerated flows in concrete channels,” Gidrotekh. Stroit., No. 3 (1992).
N. B. Isachenko, “Effect of roughness of a spillway surface on the degree of air saturation of an open-channel flow,” Izv. VNIIG, Énergiya, Leningrad,78 (1965).
A. I. Bogomolov, V. S. Borovkov, and F. G. Mairanovskii, High-Velocity Flows with a Free Surface [in Russian], Stroiizdat, Moscow (1979).
V. S. Borovkov, “Calculation of the criterion of aeration on a spillway,” in: Proceedings of Conferences and Meetings on Hydraulic Engineering [in Russian], Leningrad (1985).
O. M. Aivazyan, “Investigations of tranquil and rapid flows in smooth-walled and reinforced-concrete flumes,” Gidrotekh. Stroit., No. 2 (1984).
O. M. Aivazyan, “Hydraulic resistances and capacity of uniform aerated and unaerated rapid flows in concrete channels,” Gidrotekh. Stroit., No. 6 (1992).
Additional information
Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 7, pp. 30–36, July, 1993.
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Aivazyan, O.M., Karimov, A.M. Experimental investigation of the parameters of uniform rapid flows at the time of occurrence of aeration. Hydrotechnical Construction 27, 405–412 (1993). https://doi.org/10.1007/BF01545693
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DOI: https://doi.org/10.1007/BF01545693