非均相流模型在绕回转体通气空化流动计算中的应用

发布时间：2018-06-22 13:18

本文选题：非均相流模型 + 空化器　；参考：《工程力学》2016年01期

【摘要】：结合水洞实验,研究了非均相流模型在通气空化流场计算中的应用。分别采用均相和非均相流模型对绕带空化器回转体的通气空化流场进行了数值计算,并与实验结果进行了对比,结果表明:非均相流模型由于充分考虑到相间界面及其相互作用,较应用均相流模型,能够更准确地模拟绕带空化器回转体的通气空化流动的空泡形态和通气空化流场的非定常特性和空泡区域的速度分布,更好地捕捉到空化区域内反向射流运动的非定常过程。
[Abstract]:The application of heterogeneous flow model to the calculation of aerated cavitation flow field is studied in combination with water tunnel experiments. The aeration cavitation flow field around the rotary body of the cavitation device is numerically calculated by using the homogeneous and heterogeneous flow models, and the results are compared with the experimental results. The results show that the heterogeneous flow model takes full account of the interphase interface and its interaction, so it is better to use the homogeneous flow model. It can more accurately simulate the cavitation shape of aerated cavitation flow around the cavitation body with cavitation, the unsteady characteristics of the aerated cavitation flow field and the velocity distribution in the cavitation region, and better capture the unsteady process of the reverse jet movement in the cavitation region.
【作者单位】：北京理工大学机械与车辆学院;装备学院昌平士官学校;北京宇航系统工程研究所;
【基金】：国家自然科学基金青年科学基金项目(51209004)
【分类号】：O35

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