| CFD Simulations of Oscillating Flow around Solid and Perforated Plates |
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| 作者姓名： | 刘潇 黄山 许劲松 |
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| 作者单位： | School of Naval Architecture Ocean and Civil Eng. Shanghai Jiaotong Univ.，Joint Dept. of Naval Architecture and Marine Eng. Univ. of Glasgow and Strathclyde，School of Naval Architecture Ocean and Civil Eng. Shanghai Jiaotong Univ.，Shanghai 20030 China，Scotland UK，Shanghai 20030 China |
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| 摘 要： | Damping plates have been used for truss spars in gulf of Mexico to reduce the heave motions. The plates are usually perforated with holes for the passage of marine risers, but the effects of the perforation have not been examined thoroughly. In the present study, a computational fluid dynamics investigation into the hydrodynamic forces is carried out by using FLUENT, which is on two-dimensional perforated plates with varying degrees of perforation in oscillating flow under small Keulegan-Carpenter (KC) number. The numerical results of the hydrodynamic coefficients are presented. The effects of both the perforation ratio (PR) and KC number on the hydrodynamic coefficients of the plates are discussed. Some results of the simulated flow patterns around the plates were also given and discussed.
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CFD Simulations of Oscillating Flow around Solid and Perforated Plates |
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| LIU Xiao,HUANG Shan,XU Jin-song,.CFD Simulations of Oscillating Flow around Solid and Perforated Plates[J].Journal of Shanghai Jiaotong university,2007,12(6):845-850. |
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| Authors: | LIU Xiao HUANG Shan XU Jin-song |
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| Abstract: | Damping plates have been used for truss spars in gulf of Mexico to reduce the heave motions. The plates are usually perforated with holes for the passage of marine risers, but the effects of the perforation have not been examined thoroughly. In the present study, a computational fluid dynamics investigation into the hydrodynamic forces is carried out by using FLUENT, which is on two-dimensional perforated plates with varying degrees of perforation in oscillating flow under small Keulegan-Carpenter (KC) number. The numerical results of the hydrodynamic coefficients are presented. The effects of both the perforation ratio (PR) and KC number on the hydrodynamic coefficients of the plates are discussed. Some results of the simulated flow patterns around the plates were also given and discussed. |
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| Keywords: | heave damping plates truss spar FLUENT Keulegan-Carpenter (KC) number perforation ratio (PR) |
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