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Information × Registration Number 0307U001918, 0106U008113 , R & D reports Title Experimental and calculation evaluation of performance characteristics of a cavitation generator popup.stage_title Експериментально-розрахункове визначення характеристик кавітаційного генератору Head Pylypenko Viktor Vasylevich, Registration Date 13-06-2007 Organization Institute of Technical Mechanics of the National Academy of Sciences and National Space Agency of Ukraine popup.description2 The research subject: Hydrodynamic Cavitation Generator of fluid pressure pulsations designed as a convergent-divergent noz-zle and simulator of Hydrodynamic Cavitation Generator de-signed as a tube of a diameter equal to the critical diameter of the Cavitation Generator, and a length of the tube equal to the gen-erator's axial length. The research aim: to define experimentally the frequency and the amplitude of pulsations as a function of cavitation parameter at different sections of a pressure vessel for the inlet pressure up to 300 bar; to estimate theoretically the frequency and the amplitude of pul-sations as a function of cavitation parameter (the ratio of the out-let vessel pressure to inlet generator pressure) for inlet pressure up to 600 bar. The method used: The experimental study and mathematic modeling of high-frequency cavitation processes in a hydraulic system with the Venturi tube were adopted as a method of research. The theoretical and practical results: The experimental study for bothHydrodynamic Generator and its Simulator was carried out for inlet pressure equal to 150, 225, and 300 bar and a wide value range of cavitation parameter. It was proved that the dependence of pulsation frequencies on cavitation is close to lin-ear. It was shown that the dependencies of pressure pulsation am-plitude on cavitation value at stable generator inlet pressure are of non-linear character. The maximum value of pressure pulsation excursion are observed within the cavitation values range from 0,07 to 0,29 and amount to from 13,8 to 21,3 bar. On the whole range of cavitation parameter values the pressure pulsation ampli-tude rises with rising inlet pressure. Calculation dependencies of frequencies and pressure pulsation amplitude of vessel's wall on cavitation value at inlet generator pressures of 150-600 bar were received. Product Description popup.authors popup.nrat_date 2020-04-02 Close