AV.V.Reshetnyak, A.N.Semko The effect of nozzle from on hydrogun parameters |
Applied hydromechanics, Vol. 12 (84) ¹ 3, (2010) |
| Influence of the form of a nozzle on hydrocannon parameters is estimated in the article. Following criteria of an estimation of efficiency of a hydrocannon are formulated: the maximum speed of a stream, the maximum pressure in installation, factors of excess of pressure, transformation of energy and compactness of a high-speed site of a stream. Calculations are executed by a method of the second order of approximation of Rodionov, generalized for calculation quasionedimensional movements of an ideal compressed liquid. Results of calculations for the most widespread nozzles are resulted, confirming rationality of the offered approach. It is shown, that the nozzle profile essentially influences on hydrodynamic parameters of a pulse stream of a liquid. Ways for definition of an optimum nozzle of a hydrocannon were offered. |
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KEY WORDS: ideal compressed liquid, quasionedimensional movement, optimum nozzle |
| TEXT LANGUAGE: Russian |