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天然氣發(fā)動(dòng)機(jī)氣缸蓋流固耦合傳熱研究
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天津市應(yīng)用基礎(chǔ)及前沿技術(shù)研究計(jì)劃重點(diǎn)資助項(xiàng)目（09JCZDLC25800）


Numerical Simulation on the Fluid-solid Coupled Heat Transfer of the CNG Engine Cylinder Head
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    摘要:

    利用CFD計(jì)算軟件對(duì)天然氣發(fā)動(dòng)機(jī)氣缸蓋及其冷卻水套進(jìn)行了三維流固耦合流動(dòng)與傳熱數(shù)值模擬,，得到了缸蓋溫度場(chǎng)和水套流場(chǎng)的信息并進(jìn)行了分析評(píng)價(jià),；將計(jì)算結(jié)果與試驗(yàn)結(jié)果進(jìn)行對(duì)比驗(yàn)證了模擬的準(zhǔn)確性。根據(jù)計(jì)算發(fā)現(xiàn)的問題,，提出了改變上水孔面積的改進(jìn)措施,，通過加大第5缸附近的水流量,，減小第1、2缸附近的水流量,，改善了冷卻效果,。

    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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黎蘇,鄭清平,張坤鵬,劉國(guó)鵬,張少杰.天然氣發(fā)動(dòng)機(jī)氣缸蓋流固耦合傳熱研究[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2012,43(7):24-27,18. Li Su, Zheng Qingping, Zhang Kunpeng, Liu Guopeng, Zhang Shaojie. Numerical Simulation on the Fluid-solid Coupled Heat Transfer of the CNG Engine Cylinder Head[J]. Transactions of the Chinese Society for Agricultural Machinery,2012,43(7):24-27,18.

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  • 在線發(fā)布日期: 2012-07-02
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