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Numerical issues in modeling combustion instability by quasi-1D Euler equations
International Journal of Spray and Combustion Dynamics ( IF 1.6 ) Pub Date : 2017-05-30 , DOI: 10.1177/1756827717711015
Maria Luisa Frezzotti 1 , Simone D’Alessandro 1 , Bernardo Favini 1 , Francesco Nasuti 1
Affiliation  

The present work is devoted to investigation of numerical issues related to combustion instability simulation through a quasi-1D Eulerian solver. The main aspects addressed are the choice of a suitable multispecies model and heat release response function formulation. Experimental data and high fidelity simulation results, available in literature, are reproduced with acceptable approximation. Main features of the flow field at limit cycle are shown. Moreover, a parametric study has been performed on time-lag response function characteristic parameters, leading to important conclusions on the pertinence of each assumption in the frame of a nonlinear tool.

中文翻译:

用准一维Euler方程建模燃烧不稳定性的数值问题

本工作致力于通过准一维欧拉求解器研究与燃烧不稳定性模拟有关的数值问题。所解决的主要方面是选择合适的多物种模型和放热响应函数公式。以可接受的近似值再现了文献中可获得的实验数据和高保真度模拟结果。显示了极限循环时流场的主要特征。此外,已经对时滞响应函数特征参数进行了参数研究,从而得出了关于在非线性工具框架内每个假设的相关性的重要结论。
更新日期:2017-05-30
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