| 天然气发动机气缸盖流固耦合传热研究 |
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| 引用本文： | 黎苏,郑清平,张坤鹏,刘国鹏,张少杰.天然气发动机气缸盖流固耦合传热研究[J].农业机械学报,2012,43(7):24-27,18. |
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| 作者姓名： | 黎苏 郑清平 张坤鹏 刘国鹏 张少杰 |
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| 作者单位： | 1. 河北工业大学能源与环境工程学院,天津,300400
2. 天津雷沃动力股份有限公司,天津,300402 |
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| 基金项目： | 天津市应用基础及前沿技术研究计划重点资助项目（09JCZDLC25800） |
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| 摘 要： | 利用CFD计算软件对天然气发动机气缸盖及其冷却水套进行了三维流固耦合流动与传热数值模拟,得到了缸盖温度场和水套流场的信息并进行了分析评价;将计算结果与试验结果进行对比验证了模拟的准确性。根据计算发现的问题,提出了改变上水孔面积的改进措施,通过加大第5缸附近的水流量,减小第1、2缸附近的水流量,改善了冷却效果。
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| 关 键 词： | 天然气发动机 水套 气缸盖 流固耦合 传热 数值模拟 |
Numerical Simulation on the Fluid-solid Coupled Heat Transfer of the CNG Engine Cylinder Head |
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| Li Su,Zheng Qingping,Zhang Kunpeng,Liu Guopeng and Zhang Shaojie.Numerical Simulation on the Fluid-solid Coupled Heat Transfer of the CNG Engine Cylinder Head[J].Transactions of the Chinese Society of Agricultural Machinery,2012,43(7):24-27,18. |
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| Authors: | Li Su Zheng Qingping Zhang Kunpeng Liu Guopeng and Zhang Shaojie |
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| Institution: | Hebei University of Technology;Hebei University of Technology;Tianjin LOVOL Engines Co., Ltd.;Hebei University of Technology;Hebei University of Technology |
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| Abstract: | Fluid-solid coupled heat transfer simulation of cylinder head in CNG engine were carried out by using CFD software, the temperature field and the flow field of cylinder head were achieved and investigated. Calculating results were compared with the experimental results in order to validate the veracity of model. Improvements refer to gasket hole area have been presented according to the problems in calculation results. The cooling effect was improved by increasing water flow quantity in the vicinity of fifth cylinder and decreasing the water flow quantity near the first and second cylinders. |
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| Keywords: | CNG engine Water jacket Cylinder head Fluid-solid coupled Heat transfer Numerical simulation |
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