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Received:June 30, 2009
Received:June 30, 2009
中文摘要: 针对除尘设备中的90°圆截面弯曲管道,从不可压缩雷诺时均Navier-Stokes方程出发,建立了除尘管道内计算流体动力学(CFD)仿真模型.采用Realizable k-ε双方程湍流模式,应用控制容积法和结构化网格进行离散,并在近壁区采用标准的壁面函数法修正,完成了管道内湍流流场评价指标的数值模拟.
Abstract:For the 90° circular-section bend pine of the dust removal equipment,a computational fluid dynamic (CFD) model is established on the basis of the incompressible Reynolds-averaged Navier-Stokes equations. The numerical simulation of the evaluation index for flow field characteristics in pipeline is achieved by using the Realizable k-ε turbulence model,and by applying the control volume method and the structured grid for performing discretization and standard wall function for modification in the near-wall region.
keywords: dust removal pipeline flow field characteristics 90-degree bend pipe turbulence model numerical simulation
文章编号：20100103 中图分类号： 文献标志码：
基金项目:上海市自然科学基金(09ZR1413000);上海市科委重点科技攻关计划项目(08160510600);上海市高等学校本科教育高地建设项目.
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