数值模拟环形燃烧室两相反应流场

摘要

The numerical simulation of a three-dimensional and two-phase turbulent reactive flow was conducted by the whole region and subregion method in a gas turbine combustor with a dump diffuser. The gas phase equations were solved in a Euler frame of reference by the turbulent k-ε model and the EBU-Arrhenius turbulent combustion model. The liquid phase equations were solved in a Lagrangian frame of reference by PSIC algorithm. The six-flux model was applied to predict the radiant heat transfer in the combustor. A nonstaggered body-fitted coordinate system was used for taking account of the complex geometric configuration. The procedure of the diffuser-combustor flows is described by the SIMPLE algorithm. Reasonable predictions show that this computational method can be used to investigate the performance of a gas turbine combustor.%在任意曲线坐标系下，采用一种整体分区结合法，对包括扩压器和火焰筒在内的环形燃烧室三维两相反应流进行了数值模拟。气相采用Eulr方法处理，并采用标准k-ε双方程紊流模型、EBU-Arrhenius紊流燃烧模型、六通量热辐射模型；液相采用Lagrange法处理。在非交错网格体系下，气相用SIMPLE法求解，液相采用颗粒群轨道模型，并用PSIC算法对其进行数数求解。计算结果表明这种新方法是可行的。