| 驻涡燃烧室最佳中心驻体宽度选择的数值研究 |
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| 引用本文： | 刘世青,钟兢军.驻涡燃烧室最佳中心驻体宽度选择的数值研究[J].航空动力学报,2010,25(5):1005-1010. |
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| 作者姓名： | 刘世青 钟兢军 |
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| 作者单位： | 大连海事大学,轮机工程学院,大连116026 |
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| 摘 要： | 为确定驻涡燃烧室中心驻体最佳宽度,在四种来流条件下,对当量宽度为0.3～0.8范围,间隔为0.05当量宽度的中心驻体驻涡燃烧室三维黏性流场进行了冷态数值模拟.计算结果表明,当量宽度在0.65～0.70的中心驻体有利于在驻涡腔内形成低速且稳定的流动.驻体宽度增加会导致驻涡腔外侧主流气流速度提高,引起摩擦损失的加大,燃烧室出口截面处的总压损失增加.
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| 关 键 词： | 驻涡燃烧室 中心驻体宽度 数值模拟 |
| 收稿时间： | 4/12/2009 1:05:54 PM |
| 修稿时间： | 3/9/2010 10:09:08 AM |
Numerical simulation of center-body width in a trapped vortex combustor |
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| LIU Shi-qing and ZHONG Jing-jun.Numerical simulation of center-body width in a trapped vortex combustor[J].Journal of Aerospace Power,2010,25(5):1005-1010. |
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| Authors: | LIU Shi-qing and ZHONG Jing-jun |
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| Institution: | Marine Engineering College,Dalian Maritime University,Marine Engineering College,Dalian Maritime University |
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| Abstract: | The numerical simulation has been carried out to investigate the effect of the center-body with different equivalent width (from 0.3 to 0.8, interval 0.05) in the trapped vortex combustor under four different inlet condition for selecting the width of the center-body in the trapped vortex combustor. The results show there is a proper scale of the width to establish the low velocity and steady flow region in the trapped vortex cavity. As the increasing of the center-body width, the total pressuer loss at the combustor outlet increase. |
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| Keywords: | trapped vortex combustor center-body width numerical simulation |
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