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

作　　者：吴文昌 陈涛 韩省思 杨小平 WU Wenchang;CHEN Tao;HAN Xingsi;YANG Xiaoping(College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;AVIC Sichuan Gas Turbine Research Institute,Mianyang621000,China)

机构地区：[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

出　　处：《工程热物理学报》2024年第7期2175-2185,共11页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.91841302);江苏省优秀青年基金(No.BK20200069);国家科技重大专项(No.2017-III-0005-0029,No.J2019-III-0015-0059);中国航发四川燃气涡轮研究院外委课题。

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。In the framework of self-adaptive turbulence eddy simulation(SATES), a novel SATESsigma 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 performance differences between the newly developed SATES-sigma model and the previous SATESSmagorinsky 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SATES 

分 类 号：TK123[动力工程及工程热物理—工程热物理]