| 基于CFD的船用柴油机缸体水套设计 |
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| 引用本文： | 张强,王志明.基于CFD的船用柴油机缸体水套设计[J].内燃机学报,2005,23(6):548-553. |
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| 作者姓名： | 张强 王志明 |
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| 作者单位： | 山东大学,能源与动力工程学院,山东,济南,250061;山东大学,能源与动力工程学院,山东,济南,250061 |
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| 摘 要： | 利用数值模拟对6170型船用柴油机的冷却水套进行了冷却性能研究,优化设计了缸体冷却水套.对原机缸体冷却水套内冷却水的流场分布、冷却水套内壁面换热系数、各缸冷却均匀性和压力损失进行了分析.计算结果表明：原机缸体水套上部存在冷却强度不足、冷却均匀性差的缺陷,不能满足缸套冷却要求.通过计算提出了提高缸体上部冷却强度及改善冷却均匀性的优化设计方案,从而满足了气缸套的冷却需要,确保了发动机工作的可靠性.
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| 关 键 词： | 柴油机 数值模拟 CFD(Computational Fluid Dynamic)分析 冷却水套 |
| 文章编号： | 1000-0909（2005）06-0548-06 |
| 收稿时间： | 2005-02-13 |
| 修稿时间： | 2005-05-27 |
Designing of Body Water-Jacket by CFD in Marine Diesel Engine |
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| ZHANG Qiang,WANG Zhi-ming.Designing of Body Water-Jacket by CFD in Marine Diesel Engine[J].Transactions of Csice,2005,23(6):548-553. |
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| Authors: | ZHANG Qiang WANG Zhi-ming |
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| Affiliation: | Department of Energy and Power Engineering, Shandong University, Jinan 250061, China |
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| Abstract: | In this paper, the cooling performance of the cooling water-jacket used on marine diesel engine was studied numerically, and the body water-jacket was optimized. The flow field of cooling water in the body water-jacket, the heat convection coefficient of the inner wall, the cooling uniformity of each cylinder and the whole pressure loss for the original engine were analyzed. The simulation results show that the upsides of the original body water jacket presents an inadequate cooling effectiveness and bad cooling uniformity, and is hard to meet the cooling intensity for the liner. Through numerical calculation the optimized scheme is proposed to improve the cooling intensity and the cooling uniformity of the upside body, which meets the cooling requirement of the liner and ensures the reliability of the marine diesel engine. |
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| Keywords: | Diesel engine Numerical simulation CFD analysis Cooling water-jacket |
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