V型火焰稳定器流动及燃烧的自适应湍流模拟
Self-Adaptive Turbulence Eddy Simulation for Cold and Combusting Flow Past a V-Gutter Flameholder
吴文昌 1陈涛 1韩省思 1杨小平2
作者信息
- 1. 南京航空航天大学能源与动力学院,南京 210016
- 2. 中国航发四川燃气涡轮研究院,绵阳 621000
- 折叠
摘要
在自适应湍流模拟方法(SATES)框架下,本文基于sigma亚格子应力模型发展了一种新的SATES-sigma湍流模型.对V型火焰稳定器流动及燃烧状态开展了高精度数值研究工作,结合试验数据,对比分析了新发展的SATES-sigma模型与早期的SATES-Smagorinsky模型在冷态及燃烧计算中的计算可靠性及性能差异.结果表明本文提出的SATES-sigma模型能够准确地预测出复杂湍流尾迹流动结构.而且,结合有限速率/涡耗散燃烧模型,SATES-sigma模型在燃烧场预测上要明显优于SATES-Smagorinsky模型,在湍流燃烧问题上展现出较高的应用潜力.
Abstract
In the framework of self-adaptive turbulence eddy simulation(SATES),a novel SATES-sigma turbulence model is developed based on sigma subgrid-scale model in the current work.This model is implemented in the high-fidelity numerical investigation of cold and combusting flow past a v-gutter flameholder.In comparison with available experimental data,the reliability and per-formance differences between the newly developed SATES-sigma model and the previous SATES-Smagorinsky model in cold state and combustion calculation are compared and analyzed.It shows that the SATES-sigma model proposed in this paper accurately predicts the complex turbulent wake.Further,combined finite-rate/eddy dissipation combustion model to simulate the reacting flows,the SATES-sigma model is significantly better than the SATES-Smagorinsky model in the prediction of combustion field,which shows high application potential in turbulent combustion applications.
关键词
RANS-LES/湍流燃烧/火焰稳定器/自适应湍流模拟SATESKey words
RANS-LES/turbulence combustion/flameholder/self-adaptive turbulence eddy simu-lation引用本文复制引用
基金项目
国家自然科学基金资助项目(91841302)
江苏省优秀青年基金(BK20200069)
国家科技重大专项(2017-Ⅲ-0005-0029)
国家科技重大专项(J2019-Ⅲ-0015-0059)
中国航发四川燃气涡轮研究院外委课题()
出版年
2024
NETL
NSTL
万方数据