Results 171 to 180 of about 556 (201)
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Supercavitating Cascade Flow Analysis
Journal of Basic Engineering, 1964An exact mathematical theory of supercavitating flow in cascades with arbitrary blade shapes is developed. Applying conformal mapping methods to the potential flow problem involved, a general mapping procedure is established. The geometric interpretation of the obtained mappings is discussed in general and completed in the case of the flat-plate ...
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The studies of finite supercavitating airfoil
Applied Mathematics and Mechanics, 1986The author has considered the flow past an aerofoil above which artificial cavitated low pressure region is built, with high speed airflow jet in the aerofoil. Two assumptions are made. Cavity pressure of whole cavity is uniform. About the wall jet, it is assumed that the increase of flow velocity can be neglected and is caused by the low pressure of ...
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Tunnel tests on supercavitating propellers1
International Shipbuilding Progress, 1962This paper presents the results of tests on several supercavitating propeller models (Ø = 42 cm) with different profiles. The tests were carried out in the NSIVIB 90 × 90 cm cavitation tunnel with homogeneous flow. The propellers were designed mainly according to the method as outlined by Tachmindji.
van de Voorde, C.B., Esveldt, J.
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The shape of cavities in supercavitating flows
1966A great deal of interest has recently been shown in supercavitating flows. This interest seems due in part to the subject’s practical importance in connection with supercavitating and ventilated propellers, turbines, and hydrofoils; in part to the traditional mathematical interest in free streamline flows — as boundary value problems; and perhaps in ...
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A brief review of supercavitating hydrofoils
6th Aerospace Sciences Meeting, 1968This paper represents a critical review on hydrodynamic aspects. Some useful mathematical techniques and various cavity models are briefly summarized. Emphasis has been made on the cause of serious discrepancies between hydrodynamic theory and experiments for supercavitating hydrofoils.
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Study of the Supercavitating Body Dynamics
2011In this paper, the results of investigations of dynamics of supercavitating (SC) bodies are presented, which were performed by authors in cooperation with Yu.N. Savchenko. Computer simulation of the SC-body motion based on the G.V. Logvinovich principle of independence of supercavity section expansion [1, 2] is the main research method.
V. N. Semenenko, Ye. I. Naumova
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Longitudinal Stability of a Supercavitating Vehicle
IEEE Journal of Oceanic Engineering, 2011At very high speeds, underwater bodies develop cavitation at the trailing edges of sharp corners or from contours where pressures are sufficiently low to allow the formation of cavities containing water vapor. At sufficiently high speeds, a properly designed cavitator at the nose of an underwater vehicle can induce the formation of a vaporous cavity ...
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Supercavitating Propellers—Momentum Theory
Journal of Ship Research, 1965Based entirely on momentum and other simple considerations a reasonably complete picture of the one-dimensional pressure and velocity fields associated with heavily supercavitating propellers and drag disks has been constructed. It is shown that the flow is often retarded while approaching a heavily supercavitating propeller, so that the so-called ...
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