| Injector Nozzle Flow Model and Its Effects on the Calculations of High Pressure Sprays |
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| 作者姓名： | WEIMing-rui LIUYong-chang WENHua ZHANGYue-heng |
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| 作者单位： | [1]SchoolofEnergyandPowerEngineering,HuazhongUniversityofSeienceandTechnology,Wuhan430074,Hubei,China [2]SchoolofEnergyandPowerEngineering,HuazhongUniversityofSeienceandTechnology,Wuhan430074,Hubei,China |
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| 基金项目： | SupportedbytheNationalNaturalScienceFoundationofChina (50 3760 1 8)andtheNational 973BasicResearchProgramof
China (2 0 0 1CB2 0 92 0 7) |
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| 摘 要： | This paper discusses the flowing process inside a nozzle, especially the formtion mechanism of cavitations within the nozzle and puts forward a nozzle flow model, which takes account of the injection conditions and nozzle geometry. By the model being implemented to the KIVA codes, the spray characteristics (e. g. , spray penetration and coneangle) of diesel and dimethyl ether (DME) are simulated. The comparisons belween the computational and experimental results are performed, which show that the liquid spray characteristics could be more truly demonstrated by considering the existence of the cavitations.
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| 关 键 词： | 注射器 喷嘴式流量模型 雾化 喷射 空化作用 内燃机 |
| 收稿时间： | 16 June 2003 |
Injector nozzle flow model and its effects on the calculations of high pressure sprays |
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| WEIMing-rui LIUYong-chang WENHua ZHANGYue-heng.Injector Nozzle Flow Model and Its Effects on the Calculations of High Pressure Sprays[J].Wuhan University Journal of Natural Sciences,2004,9(4):483-488. |
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| Authors: | Wei Ming-rui Liu Yong-chang Wen Hua Zhang Yue-heng |
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| Institution: | (1) School of Energy and Power Engineering, Huazhong University of Science and Technology, 430074 Wuhan, Hubei, China |
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| Abstract: | This paper discusses the flowing process inside a nozzle, especially the formation mechanism of cavitations within the nozzle and puts forward a nozzle flow model, which takes account of the injection conditions and nozzle geometry. By the model being implemented to the KIVA codes, the spray characteristics (e.g., spray penetration and cone angle) of diesel and dimethyl ether (DME) are simulated. The comparisons between the computational and experimental results are performed, which show that the liquid spray characteristics could be more truly demonstrated by considering the existence of the cavitations. |
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| Keywords: | nozzle model spray characteristics cavitation atomization |
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