| 波瓣喷射器强化混合的数值研究 |
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| 引用本文： | 单勇,张靖周,朱华萍.波瓣喷射器强化混合的数值研究[J].航空动力学报,2011,26(9):1935-1940. |
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| 作者姓名： | 单勇 张靖周 朱华萍 |
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| 作者单位： | 南京航空航天大学能源与动力学院,南京,210016 |
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| 摘 要： | 利用FLUENT CFD（computational fluid dynamics）数值计算软件,对波瓣喷射器中无化学反应异类气体的混合过程进行了数值研究,二氧化碳气体作为主流从波瓣状狭缝中喷出,与同向空气流在混合管内进行混合.获得了两股气流相互混合过程中的速度分布、流向涡分布、组分分布等相关信息,分析了波瓣喷射器结构...
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| 关 键 词： | 波瓣喷射器 流向涡 混合特性 数值计算 强化混合 |
| 收稿时间： | 2010/8/30 0:00:00 |
| 修稿时间： | 2010/12/18 0:00:00 |
Numerical study on mixing enhancement of lobed injector |
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| SHAN Yong,ZHANG Jing-zhou and ZHU Hua-ping.Numerical study on mixing enhancement of lobed injector[J].Journal of Aerospace Power,2011,26(9):1935-1940. |
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| Authors: | SHAN Yong ZHANG Jing-zhou and ZHU Hua-ping |
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| Institution: | College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | The mixing characteristics of two different kinds of fluids with non-reaction in the lobed injector were numerically studied by using FLUENT CFD(computational fluid dynamics) software. The primary flow (CO2) was injected from the lobed slot between two corrugated plates, and then mixed with the coflowing secondary flow (air) in the mixing duct. The velocity fields, streamwise vortice structures and species distribution were obtained to analyze the effects of lobed injector parameters on the circulation intensity of streamwise vortices. The streamwise vortices induced by the lobed injector are helpful to improve the mixing efficiency of the two coflowing fluids, and make the species distribution more uniform. |
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| Keywords: | lobed injector streamwise vortice mixing characteristics numerical calculation mixing enhancement |
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