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空化螺旋桨非定常粘性流场特征分析 被引量:7

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摘要 基于粘性多相流理论,在均匀入流条件下,利用混合网格和滑动网格数值求解非定常纳维-斯托克斯(N-S)方程和空泡动力学方程来预报螺旋桨尾流场压力、速度和蒸汽体积分数.螺旋桨片空化、毂涡空化、尾流场梢涡空化和压力等的数值计算结果与相关实验一致.预报的尾流场压力信号叶频和轴频等特征与螺旋桨模型及设定参数一致.叶频信号的衰减速度随着进速系数和空化数的减小而增加.梢涡空化对近尾流场压力波动具有重要作用.
出处 《中国科学:技术科学》 EI CSCD 北大核心 2011年第2期213-222,共10页 Scientia Sinica(Technologica)
基金 国防预研重点项目(批准号:06904002068)资助
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共引文献62

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