Numerical Simulation Studies on the Discharge Coefficient of Gas Turbine Combustor Liner Air Holes

CUI Yu-feng; XU Gang; TIAN Xue-qing; HUANG Wei-guang

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Numerical Simulation Studies on the Discharge Coefficient of Gas Turbine Combustor Liner Air Holes

更新时间：2026-07-07

- Numerical Simulation Studies on the Discharge Coefficient of Gas Turbine Combustor Liner Air Holes
- Vol. 20, Issue 2, (2005)
- 作者机构：
  
  1. 中国科学院工程热物理研究所,北京,100080
  2. 中国科学院研究生院,北京,100080
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2005
- 稿件说明：
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CUI Yu-feng, XU Gang, TIAN Xue-qing, et al. Numerical Simulation Studies on the Discharge Coefficient of Gas Turbine Combustor Liner Air Holes[J]. 2005, 20(2).
DOI：

CUI Yu-feng, XU Gang, TIAN Xue-qing, et al. Numerical Simulation Studies on the Discharge Coefficient of Gas Turbine Combustor Liner Air Holes[J]. 2005, 20(2). DOI：

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。

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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