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本文采用贴体坐标系(Body-Fitted Coordinate System)数值研究先进燃烧室涡流杯内速度场和紊流特性，并利用TTM法生成贴体网格。由于双级旋流器形状复杂，本文提出了型线定点法来确定边界网格、uv线法生成交错网格以及整体不分区进行流场计算。计算结果表明：计算方法合理，计算机程序是可靠的。

The three dimensional swirling recirculating isothermal turbulent flows of agas turbine combustor dome swirl cup are studied numerically by a arbitrarycurvilinear coordinate system.The dual-stage swirler has numerous passagesand its geometry is so complex that it makes the grid generationdifficult. The computational meshes are generated by the numericalsolution of partial differential equations.The swirl cup is treated as aninternal obstacle and suitably meshing around it. Using a coordinatetransformation relations,the transport equations are transformed from acylindrical system to a general curvilinear system. Turbulence is modeledby the standard k- model along with the wall functiontreatment for near-wall regions. The finite differencing equations aresolved by Hybrid scheme, SIMPLE algorithm and the staggered curvilinearnon-orthogonal grid system. 　　Predictions show that the recirculation zone at the centerline is createdunder both the co-swirl and counter-swirl condition. The recirculation zonefor the counter-swirl is larger than that for the co-swirl. The low-velocitygas flow with large turbulence intensities and high dissipation rates areoccured inside the recirculation zone. Calculations of two inlet conditionsare shown the numerical procedure is reliable.