| A BOUNDARY INTEGRAL EQUATION AND ITS NUMERICAL SOLUTION OF POTENTIAL FLOW AROUND SURFACE-IRREGULA-RITIES |
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| 引用本文： | Guo Ya-kun Wen Xian-yun Institute of Hydraulic Research,Chengdu University of Science and Technology,Chengdu,610065,P.R.China. A BOUNDARY INTEGRAL EQUATION AND ITS NUMERICAL SOLUTION OF POTENTIAL FLOW AROUND SURFACE-IRREGULA-RITIES[J]. 水动力学研究与进展(B辑), 1993, 0(1) |
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| 作者姓名： | Guo Ya-kun Wen Xian-yun Institute of Hydraulic Research Chengdu University of Science and Technology Chengdu 610065 P.R.China |
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| 作者单位： | Guo Ya-kun Wen Xian-yun Institute of Hydraulic Research，Chengdu University of Science and Technology，Chengdu，610065，P.R.China |
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| 摘 要： | In this paper,using complex functional theory,the authors turn the potentialflow around the surface irregularities in a pressure conduit and semi-infinite platforms intoDirichlet problem.Based on Schwarz formula and by the application of Plemelj's formula,theauthors change the problem into the integration of a Cauchy boundary integral equation in theflow plane through the substitution of variables.Using numerical integration,the authors obtainthe velocity distribution and pressure coefficient along surface irregularities and platforms.Thephysical concept of this method is clear,the convergent speed is rapid and the computative effi-ciency is high.The calculated values agree well with the measured results.It is an effective andsimple method in solving potential flow.
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A BOUNDARY INTEGRAL EQUATION AND ITS NUMERICAL SOLUTION OF POTENTIAL FLOW AROUND SURFACE-IRREGULA-RITIES |
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| Guo Ya-kun Wen Xian-yun Institute of Hydraulic Research,Chengdu University of Science and Technology,Chengdu,,P.R.China. A BOUNDARY INTEGRAL EQUATION AND ITS NUMERICAL SOLUTION OF POTENTIAL FLOW AROUND SURFACE-IRREGULA-RITIES[J]. Journal of Hydrodynamics, 1993, 0(1) |
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| Authors: | Guo Ya-kun Wen Xian-yun Institute of Hydraulic Research Chengdu University of Science Technology Chengdu P.R.China |
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| Affiliation: | Guo Ya-kun Wen Xian-yun Institute of Hydraulic Research,Chengdu University of Science and Technology,Chengdu,610065,P.R.China |
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| Abstract: | In this paper,using complex functional theory,the authors turn the potential flow around the surface irregularities in a pressure conduit and semi-infinite platforms into Dirichlet problem.Based on Schwarz formula and by the application of Plemelj's formula,the authors change the problem into the integration of a Cauchy boundary integral equation in the flow plane through the substitution of variables.Using numerical integration,the authors obtain the velocity distribution and pressure coefficient along surface irregularities and platforms.The physical concept of this method is clear,the convergent speed is rapid and the computative effi- ciency is high.The calculated values agree well with the measured results.It is an effective and simple method in solving potential flow. |
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| Keywords: | potential flow boundary integral equation numerical integration |
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