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在综述国内外研究发动机喷嘴的空化成因的基础上,系统报道了空化的影响与作用机理,以及研究空化的方法。提出了空化研究的数值模拟应考虑发动机实际工况时高温的影响,强调应该加强喷嘴的气蚀磨损和空化程度的最优化技术研究。同时,应该强化研究代用燃料的空化机理、影响特性和气蚀磨损机理,为发动机可代用清洁燃料的应用打下基础。
Based on a review of the causes of cavitation in engine nozzles both at home and abroad, the effects and mechanism of cavitation are systematically reported, and the cavitation method is studied. It is put forward that the numerical simulation of cavitation should consider the influence of high temperature in the actual working condition of the engine and emphasize the optimization technology research that the cavitation erosion and cavitation of the nozzle should be strengthened. At the same time, the mechanism of cavitation of alternative fuels, the characteristics of cavitation erosion and the mechanism of cavitation wear should be studied to lay a foundation for the application of alternative fuels for engines.