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Development of Mathematical Model on Preparation of Functionally Graded Material by Co-sedimentation 被引量:6
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作者 Zhongmin YANG, Lianmeng ZHANG and Qiang SHEN Institute of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2001年第2期275-277,共3页
From the process of sedimentation the mathematical relationships among deposition Volume and powder properties as well as sedimentation parameters were deduced. Based on the formula a mathematical model was set up and... From the process of sedimentation the mathematical relationships among deposition Volume and powder properties as well as sedimentation parameters were deduced. Based on the formula a mathematical model was set up and simulated through the computer. At last the validity of mathematical model was supported by the representative experiment on Ti-Mo system FGM prepared by co-sedimentation. 展开更多
关键词 CO MO Development of mathematical Model on Preparation of functionally Graded Material by Co-sedimentation
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THE INVESTIGATION OF VORTEX METHOD AND ITS APPLICATION TO DRAG REDUCTION TECHNOLOGY 被引量:1
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作者 GAO Li-jin 《Journal of Hydrodynamics》 SCIE EI CSCD 2006年第3期378-378,共1页
The flow past a circular cylinder and airfoil with varying mathematical roughness function are numerically simulated. A new model about blowing and suction is constructed by using the concept of mathematical roughness... The flow past a circular cylinder and airfoil with varying mathematical roughness function are numerically simulated. A new model about blowing and suction is constructed by using the concept of mathematical roughness function. The flow field and the drag are investigated through this new model. By the numerical study about bluff body, some conclusions are drawn to reduce the drag. 展开更多
关键词 mathematical roughness function sublayer of laminar flow blowing and suction mechanism drag reduction respond time
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