首页|V型火焰稳定器流动及燃烧的自适应湍流模拟

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

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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.
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.

RANS-LESturbulence combustionflameholderself-adaptive turbulence eddy simu-lation

吴文昌、陈涛、韩省思、杨小平

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南京航空航天大学能源与动力学院,南京 210016

中国航发四川燃气涡轮研究院,绵阳 621000

RANS-LES 湍流燃烧 火焰稳定器 自适应湍流模拟SATES

国家自然科学基金资助项目江苏省优秀青年基金国家科技重大专项国家科技重大专项中国航发四川燃气涡轮研究院外委课题

91841302BK202000692017-Ⅲ-0005-0029J2019-Ⅲ-0015-0059

2024

工程热物理学报
中国工程热物理学会 中国科学院工程热物理研究所

工程热物理学报

CSTPCD北大核心
影响因子:0.4
ISSN:0253-231X
年,卷(期):2024.45(7)