受限空间强旋射流扩散火焰的数值模拟

Numerical Simulation of Confined Strong Swirl Jet Diffusion Flame

通过求解包括辐射换热项的二维轴对称法富尔平均的NS方程,采用涡耗散的燃烧模型,对公开实验数据的受限空间内强旋射流的无预混火焰进行了数值模拟,得到了流场的平均速度、主要标量的空间分布;通过和实验数据对比,分析了目前常见的湍流模型及数值求解技术在模拟复杂流场中的应用。

Numerical simulation of confined strong swirl stabilized non - premixed flame with open test data is completed by solving 2D axisymmetrical Favre averaged Navier Stokes equations including radiant heat transfer term and using the combustion model with eddy dissipation model. The simulated average velocity and main scalar quantity space distribution are obtained. Compared with test data, the application of common turbulence models, numerical techniques in complicated flowfield simulation were analyzed.