【摘要】 木文建立了一个模糊空化系统、运用模糊数学的理论对空化起始问题进行了理论预测、根据反映空化核群空化行为的四个空化特征值和由试验得出的一些定性规律,用模糊理论的方法得出控制系统空化状态的模糊状态转移矩阵,从而估算出系统的空化状态。用本文所提出的方法对两种轴对称头体的空化起始进行了预测。所得的结果与相应的试验结果相当满意地符合。更多还原

【Abstract】 In this paper, a fuzzy cavitation system is established. That is, the flowaround the rigid body is regarded as a whole system in which we are going to see whether cavitation will occur under given conditions. An analytical method for predicting cavitation inception and its type is presented by using fuzzy mathematic theory, which is also applied to deal with the information about cavitation system and to construct the fuzzy state transform metrix "for roughly determining the cavitation state on the body.更多还原