三维加力燃烧室两相湍流燃烧的数值模拟

Numerical Simulation of Two-Phase Turbulent Combustion in a 3-D Afterburner

本文对涡扇发动机三维加力燃烧室内的两相湍流燃烧过程进行了数值模拟。两相流模型采用双流体模型 ,湍流模型采用标准 k-ε模型 ,湍流燃烧采用涡旋破碎 ( EBU)模型 ,数值方法采用 LEAGAP算法。计算结果定性合理。

The two-phase turbulent combustion in a three dimensional afterburner for a turbofan aeroengine was numerically investigated.The afterburner had two ring flame stabilizers and two rows of radial flame stabilizer.The two-fluid model was used for the two-phase flow.The standard k-ε turbulence model was employed.The average chemical reaction rate was approximated by the Eddy-Break-Up (EBU) model.The calculation was performed using the LEAGAP algorithm. The results indicated that the afterbuner was designed reasonably,and the combustion in it was quite good.