环栅式动力除尘器的两相流数值模拟

Numerical Simulation of Two-phase Flows of a Cascade-ring Type of Aerodynamic Dust Collector

为了开发、设计高性能产品,针对环栅式动力除尘器进行了二维两相流数值模拟。模拟中使用了颗粒轨道模型。采用κ ε模型对气相湍流进行模拟,用Stochas模型描述颗粒相的湍流扩散。对灰尘颗粒及气体的流动情况以及除尘器的特性进行了分析研究。

A numerical simulation of two dimensional two phase flows was conducted of a cascade ring aerodynamic dust collector in an effort to enhance its performance through an improved design. During the simulation a particle trajectory model has been employed with a k εmodel being used to simulate gas phase turbulent flows and a Stochas model used to describe the turbulent diffusion of a particle phase. The flow conditions of ash particles and gas, and the characteristics of the dust collector were studied and analyzed.