基于CFD的烟风弯曲管内湍流流动的数值模拟  

Numerical Simulation of Turbulent Flow in Smoke and Air Curved Pipes Based on CFD

作　　者：张鑫 杨刚 汪志强 李冰 张惠丽 ZHANG Xin;YANG Gang;WANG Zhiqiang;LI Bing;ZHANG Huili(Beijing Aerospace Petrochemical Technology&Equipment Engineering Co.Ltd.,Beijing 100176,China)

机构地区：[1]北京航天石化技术装备工程有限公司,北京100176

出　　处：《工业炉》2023年第1期6-11,15,共7页Industrial Furnace

摘　　要：运用Fluent软件对烟风90°弯曲管的内部流场进行了三维数值模拟研究。探讨了R/d(1、1.5和2)以及管道截面形状(方形、圆形和正六边形)对弯曲管内部流场流动特性的影响。通过分析内部流场的压力分布、速度矢量、流动轨迹、管道冲击力和弯头损失等表征流动特性参数的变化规律,研究了流体流动特性的变化规律。A three-dimensional numerical simulation of the internal flow field of a 90°curved pipe for flue gas was studied using Fluent software.The effects of R/d(1,1.5 and 2)and the shape of the duct crosssection(square,circular and square hexagonal)on the flow characteristics of the internal flow field of the curved pipe are investigated.By analyzing the change rule of flow characteristic parameters such as pressure distribution,velocity vector,flow path,pipe impact force and elbow loss of internal flow field,the change rule of fluid flow characteristic is studied.

关 键 词：弯曲管 k-ε模型 流动特点 数值模拟 

分 类 号：TK229.6[动力工程及工程热物理—动力机械及工程] O357.5[理学—流体力学]