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.
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)
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
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。
