| K系数喷油嘴喷孔内气液两相流动的三维模拟 |
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| 引用本文： | 王启航,张克文. K系数喷油嘴喷孔内气液两相流动的三维模拟[J]. 柴油机设计与制造, 2009, 16(4): 5-10,15 |
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| 作者姓名： | 王启航 张克文 |
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| 作者单位： | 道依次一汽大连柴油机有限责任公司,大连,116022;道依次一汽大连柴油机有限责任公司,大连,116022 |
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| 摘 要： | 应用AVLFIRE软件，对两种不同k系数（k=1．5和k=0）的6孔喷嘴进行了气液两相流的三维计算。在喷嘴针阀处于全开条件下，进行了两种喷嘴不同进口压力方案的对比分析．计算结果表明：K系数喷嘴，有效地抑制了气穴的生成，提高了喷嘴的流量系数和各喷孔流量的均匀性。
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| 关 键 词： | 喷嘴 K系数 两相流 数值模拟 |
CFD Calculation of the Two-Phase Flow inside K-Factor Injection Nozzle |
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| Wang Qihang,Zhang Kewen. CFD Calculation of the Two-Phase Flow inside K-Factor Injection Nozzle[J]. Design and Manufacture of Diesel Engine, 2009, 16(4): 5-10,15 |
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| Authors: | Wang Qihang Zhang Kewen |
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| Affiliation: | Wang Qihang,Zhang Kewen(DEUTZ FAW Dalian Diesel Works,Dalian,116022,China) |
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| Abstract: | Three dimensional simulations of two phase flow were made for two nozzles of 6 holes with different K factors of k=1.5 and k=0 by means of AVL FIRE software.Different inlet pressure schemes of the two nozzles are compared when the needles are at their maximum lifts.Two-Phase flow Calculation result shows that injection nozzle with K factor can better decrease cavitation and improve flow coefficient and uniform flow of a nozzle. |
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| Keywords: | nozzle k factor two-phase flow numerical simulation |
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