A 2D-axisymmetric analytical model for the estimation of indirect combustion noise in nozzle flows
A 2D-axisymmetric analytical model for the estimation of indirect combustion noise in nozzle flows
复制标题
用于估计喷嘴流中间接燃烧噪声的二维轴对称分析模型
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
S. Ducruix
中科院分区：
文献类型：
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作者：
Jun Zheng;M. Huet;A. Giauque;F. Cléro;S. Ducruix
在设计新的推进系统时，快速确定燃烧室下游元件的热声传递函数是非常有用的，因为它们可能在燃烧不稳定性的开始和发展中起关键作用。为了减少计算时间，半解析方法使用准一维流动假设来计算喷管传递函数。本文提出了一种新的估算亚临界喷管非均匀温度区加速产生的间接燃烧噪声的二维轴对称模型。该模型扩展了Giauque等人提出的一维模型（“亚临界喷嘴中间接燃烧噪声的分析分析”，ASME J. Eng. Gas Turb. Power 134，pp 111202，2012）和Duran & Moreau（“使用线性化欧拉方程的准一维解”）。
When designing new propulsion systems, it can be very useful to quickly determine thermoacoustic transfer functions of the elements downstream of the combustion chamber, since they may play a key role in the onset and development of combustion instabilities. In order to reduce computational times, semi-analytical methods use quasi-1D ow assumptions for the evaluation of nozzle transfer functions. A new 2D-axisymmetric model estimating indirect combustion noise generated by the acceleration of non-uniform temperature regions through a subcritical nozzle is presented. This model extends the 1D models proposed by Giauque et al. ("Analytical Analysis of Indirect Combustion Noise in Subcritical Nozzles," ASME J. Eng. Gas Turb. Power 134, pp 111202, 2012) and Duran & Moreau ("Solution of the quasi-one-dimensional linearized Euler equations using