| YAO Xue-lei,YUAN Cheng-qing,ZHAO Xiang-kuan,BAI Xiu-qin.Effect of Surface Roughness and Fouling on Ship Resistance Based on CFD Analysis[J],46(6):27-34 |
| Effect of Surface Roughness and Fouling on Ship Resistance Based on CFD Analysis |
| Received:May 26, 2017 Revised:June 20, 2017 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2017.06.005 |
| KeyWord:Roughness Fouling Ship resistance Roughness allowance FLUENT Numerical simulation. |
| Author | Institution |
| YAO Xue-lei |
a.Reliability Engineering Institute, School of Energy and Power Engineering, b. Key Laboratory of Marine Power Engineering & Technology Ministry of Transport, Wuhan University of Technology, Wuhan , China |
| YUAN Cheng-qing |
a.Reliability Engineering Institute, School of Energy and Power Engineering, b. Key Laboratory of Marine Power Engineering & Technology Ministry of Transport, Wuhan University of Technology, Wuhan , China |
| ZHAO Xiang-kuan |
a.Reliability Engineering Institute, School of Energy and Power Engineering, b. Key Laboratory of Marine Power Engineering & Technology Ministry of Transport, Wuhan University of Technology, Wuhan , China |
| BAI Xiu-qin |
a.Reliability Engineering Institute, School of Energy and Power Engineering, b. Key Laboratory of Marine Power Engineering & Technology Ministry of Transport, Wuhan University of Technology, Wuhan , China |
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| Abstract: |
| Effects of surface roughness and fouling on ship resistance are analyzed by numerical simulation, the fouling covered on hull are graded through the visual inspection, three different hull surface conditions are divided corresponding to three models used to simulate by FLUENT software through computational fluid dynamics (CFD) method. The simulation results are compared with the empirical conclusions, and the resistance growth and resistance properties are analyzed. It shows that poor hull surface conditions make ship resistance increase, added resistance increase with speed grow under the same surface condition. On the condition of surface roughness (including mild fouling) and moderate fouling, the increased resistance is mainly frictional resistance, however, there is not the same under the condition of heavy fouling that viscous pressure resistance, wave resistance increase more than frictional resistance, and the recommended coefficient is not applicable to the reality situation under the condition of heavy fouling, the results calculated though CFD method are useful. Speed reduce is helpful to drag reduce on any surface condition of ship. |
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