| 应用气动斜坡和燃气发生器的超燃燃烧室 |
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| 引用本文： | 闫明磊,韦宝禧,徐旭,史新兴.应用气动斜坡和燃气发生器的超燃燃烧室[J].北京航空航天大学学报,2011,37(7):782-788. |
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| 作者姓名： | 闫明磊 韦宝禧 徐旭 史新兴 |
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| 作者单位： | 北京航空航天大学宇航学院,北京,100191;北京航空航天大学能源与动力工程学院,北京,100191 |
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| 摘 要： | 为增强超声速燃烧过程中的燃料掺混,设计了一种被动式燃料掺混增强结构:气动斜坡/燃气发生器组合燃料喷注结构,并在直连式超燃试验台上对这种喷注结构进行了纹影、油流谱等冷试和热试试验.同时数值模拟了超声速流场中气动斜坡/燃气发生器组合结构的流动及燃烧特性.结果表明:气动斜坡/燃气发生器组合结构有助于燃料的掺混,掺混效率由单独气动斜坡喷注器情况下的60%提高到了75%;总压损失主要由壁面摩擦产生,气动斜坡和燃气发生器产生的总压损失相对较少;作为燃烧室点火器使用的燃气发生器起着点火和助燃的双重作用.
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| 关 键 词： | 气动斜坡 燃气发生器 流向涡 喷注器 超燃燃烧室 |
| 收稿时间： | 2010-07-08 |
Integration of aeroramp injector/gas-portfire igniter in supersonic combustor |
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| Yan Minglei Wei Baoxi Xu Xu Shi Xinxing.Integration of aeroramp injector/gas-portfire igniter in supersonic combustor[J].Journal of Beijing University of Aeronautics and Astronautics,2011,37(7):782-788. |
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| Authors: | Yan Minglei Wei Baoxi Xu Xu Shi Xinxing |
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| Institution: | 1. School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
2. School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
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| Abstract: | A novel hydrocarbon-fuel injection and ignition/flameholding system consisting of aerodynamic ramp(aeroramp) injector and gas-portfire was designed,which was investigated experimentally and numerically to figure out the supersonic flowfield and its combustion.Color schlieren and surface oil-flow visualization pictures were taken in the vicinity of the injectors to obtain a qualitative assessment of the injector flowfields.Results show that the assembly strengthen and elevate the streamwise vortex.Compared t... |
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| Keywords: | aeroramp gas-portfire streamwise vortex injector supersonic combustion |
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