中北大学学报（自然科学版）2017，Vol.38Issue(5)：599-604,6.DOI:10.3969/j.issn.1673-3193.2017.05.016
基于CFD技术的管内流动精细仿真方法
An Accurate Simulation Method of Pipe Flow Based on CFD
孙致月 1陈翾 1赵世明1
作者信息
- 1. 中国人民解放军 91336 部队,河北 秦皇岛 066001
- 折叠
摘要
Abstract
Computational fluid dynamics (CFD)is considered as a robust,efficient and convenient meth-od to solve the internal flow field of pipe.In order to simulate the impacts of presence of pipe walls,the two-layer turbulent model was employed to define the near-wall region and fully-turbulent region's flow respectively.The enhanced wall treatment was used to calculate flow field in near-wall region.Proper boundary conditions and simulation region were selected to prevent pipe's structure affecting the bounda-ry conditions reversely,also to achieve more accurate simulation solutions.Used these models,an accu-rate computational method of pipe flow was built based on CFD technique.The internal flow field of two kinds of typical pipes,straight pipe and 3D curving pipe,were solved to use the built computational method.The flow field is quantitatively described well,such as the developing process when the fluid j ust flows into pipe.Parts of results can be attained numerically as well as analytically were compared, and the validity and accuracy of the computational method are proved.关键词
管内流动/数值仿真/CFD/精细模拟Key words
pipe flow/computational simulation/CFD/accurate simulation分类
数理科学引用本文复制引用
孙致月,陈翾,赵世明..基于CFD技术的管内流动精细仿真方法[J].中北大学学报（自然科学版）,2017,38(5):599-604,6.
