| 燃气轮机燃烧室进气孔流量系数的数值模拟 |
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| 引用本文： | 崔玉峰,徐纲,田学清,黄伟光.燃气轮机燃烧室进气孔流量系数的数值模拟[J].航空动力学报,2005,20(2):192-196. |
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| 作者姓名： | 崔玉峰 徐纲 田学清 黄伟光 |
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| 作者单位： | 1. 中国科学院,工程热物理研究所,北京,100080;中国科学院,研究生院,北京,100080
2. 中国科学院,工程热物理研究所,北京,100080 |
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| 基金项目： | 中国科学院知识创新工程重大项目煤炭联产系统中动力生产核心技术研发 |
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| 摘 要： | 采用数值模拟方法研究了简单平圆孔、某型燃气轮机的气膜冷却孔的流量系数与几何参数和流动参数的关系,并得到了简单的流量系数的计算公式;将得到的简单平圆孔的计算公式与实验资料和理论分析结果进行了比较,吻合的很好。还研究了当用缝隙代替冷却孔来简化燃烧室几何时如何确定缝隙的面积。计算结果表明用数值模拟来确定燃烧室进气孔的流量系数是一种可行的并且简单、有效、准确的方法。
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| 关 键 词： | 航空、航天推进系统 流量系数 燃气轮机燃烧室 数值模拟 平圆孔 冷却孔 |
| 文章编号： | 1000-8055(2005)02-0192-05 |
| 收稿时间： | 2004/2/23 0:00:00 |
| 修稿时间： | 2004年2月23日 |
Numerical Simulation Studies on the Discharge Coefficient of Gas Turbine Combustor Liner Air Holes |
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| CUI Yu-feng,XU Gang,TIAN Xue-qing and HUANG Wei-guang.Numerical Simulation Studies on the Discharge Coefficient of Gas Turbine Combustor Liner Air Holes[J].Journal of Aerospace Power,2005,20(2):192-196. |
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| Authors: | CUI Yu-feng XU Gang TIAN Xue-qing and HUANG Wei-guang |
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| Institution: | CUI Yu-feng~ |
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| Abstract: | The discharge coefficient of the plain circular holes and the film cooling holes were investigated with numerical simulation method.The relation of the discharge coefficient to the geometrical and the flow parameters were studied.Results of the proposed formula for plain circular hole were compared with the experimental and theoretical data, and they agreed well.Sometime slot is used instead of circular holes to simplify the geometry of the combustor.The determination of gap's equivalent area was also investigated.All calculated results indicate that numerical simulation is a feasible,simple and effective method to determine the discharge coefficient of the gas turbine combustor air holes. |
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| Keywords: | aerospace propulsion system discharge coefficient gas turbine combustor numerical simulation plain circular hole film cooling hole |
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