基于色噪声PDF理论的旋转两相流数值模拟  

Numerical Simulating for Swirl Two-Phase Flow Based on Particle Colored-Noise PDF Theory

作　　者：张平[1] 李泽征[2] 徐江荣[2] 

机构地区：[1]杭州电子科技大学计算机学院,浙江杭州310018 [2]杭州电子科技大学应用数学与工程计算研究所,浙江杭州310018

出　　处：《杭州电子科技大学学报（自然科学版）》2008年第4期45-48,共4页Journal of Hangzhou Dianzi University：Natural Sciences

基　　金：浙江省自然科学基金资助项目(Y105028)

摘　　要：该文运用色噪声扩维方法和统一色噪声方法的矩模型/有限体积/SIMPLE方法数值模拟旋流燃烧器旋转两相流动。与k-ε-kp模型的模拟结果相比,颗粒相速度有明显的改善,特别是壁面附近与实验结果吻合得更好。两个模型相比,色噪声扩维方法轴向小,与实验吻合得好,切向和径向偏大,低于实验结果;而统一色噪声方法相反,总体比较,色噪声扩维方法优于统一色噪声方法。The moment closure model for colored noise dimension expanding（CNDE） method and united colored noise（UCN） method are employed to simulate the swirl two- phase flow with finite volume/SIMPLE method. Compared with the results by k - ？ - kp model, the simulating results is better, especially the particle velocity by wall. The simulations results of CNDE is better than of UCN, the particle axis velocity by CNDE is agrees with the experimental results and lower than by UCN, but the tangential and vertical velocity by CNDE is higher than that by UCN, and lower than the experimental results.

关 键 词：两相流 概率密度函数 旋转流动 数值模拟 

分 类 号：TN121[电子电信—物理电子学]