中文摘要：

先进旋涡燃烧室具有高燃烧效率、低污染物排放和总压损失小等优点,其性能明显优越于其他贫燃料预混合燃烧设备。本文对不同钝体布置方式下,先进驻涡燃烧室中三维冷态气流的流动特性进行了数值模拟研究,得出了燃烧室流阻、驻涡结构及其稳定性受前、后钝体距离和后钝体宽度两个几何参数影响的规律,为对先进驻涡燃烧室流动和燃烧特性的深入研究打下了基础。

英文摘要：

Advanced vortex combustor (AVC) has the significant superiority of higher combustion efficiency,lower pollution level and lower total pressure loss.In this paper,three-dimensional numerical simulation was carried out to study the flow field of AVC.The effect of distance between fore-body and after-body and width of after-body was obtained,on flow resistance,trapped vortex configuration and stability.The results can provide valuable data for further research on the flow characteristics and combustion of AVC.