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创新与构思——————力学小议之二 总被引:8,自引:1,他引:8
以亲身经历对力学提出看法:试验愈来愈精细, 规模愈来愈小;
计算愈来愈精细, 规模愈来愈大. 建议加强数值模拟人才的培养. 相似文献
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导出了描述Bingham流体在旋转圆盘上流动的基本方程,用差分方法数值解薄膜厚度分布方程,得到二种类型的厚度分布。数值解分别和计算机磁盘的厚度分布,Jenekhe等的实验结果定性一致。 相似文献
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On the basis of a self-similar solution as well as of the assumption of the“TransverseMotion”.a general linear theory on hypersonic flow over a general slender body in set up inthis paper,By means of this theory,the problem concerned can be put into a universalsystem of O.D.Eqs.which can be integrated numerically in advance. 相似文献
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A variational principle of hybrid FEM is proposed to solve the flow in a visco-elastic pipe. As an example, the influence of an axisymmetrical stenosis on an artery vibrating flow with a single frequency is calculated. 相似文献
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On the basis of a self-similar solution as well as of the assumption of the Transverse Motion a general linear theory on hypersonic flow over a general slender body is set up in this paper. By means of this theory, the problem concerned can be put into a universal system of O.D.Eqs. which can be integrated numerically in advance. 相似文献
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管道中的空塞流动问题,由于其自由面上边界条件的非线性性质,使问题的求解困难很大。本文用罚函数有限元方法,数值计算了无重力的低雷诺数空塞流动问题。对非线性的自由面边界条件,本文采用了一种基于流线的迭代方法。数值计算的结果与实验相吻合,且收敛速度较快。 相似文献
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本文研究了旁支管道附近的剪切流场变化;计算时考虑到小球的存在.本文采用了《有限元程序自动生成系统》,整个计算所用工作量极少. 相似文献
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ChenYaosong(陈耀松);MaXinming(马新民);LiangGouping(梁国平);DaiMing(戴民)(ReceivedMay23,1994;CommunicatedbyDaiShiqiang)SHEARINGFLOWNEARAB... 相似文献