Computation of turbulent-flow in a square duct - aspects of the secondary flow and its origin
文献类型：期刊论文
| 作者 | Wang FM(王发民) ; Chew YT; Khoo BC; Yeo KS
|
| 刊名 | Computers & Fluids
 |
| 出版日期 | 1994 |
| 卷号 | 23期号:1页码:157-176 |
| 关键词 | Prediction Heat Wall |
| ISSN号 | 0045-7930 |
| 通讯作者 | WANG, FM (reprint author), NATL UNIV SINGAPORE,DEPT MECH & PROD ENGN,KENT RIDGE,SINGAPORE 0511,SINGAPORE. |
| 中文摘要 | A numerical study of turbulent flow in a straight duct of square cross-section is made. An order-of-magnitude analysis of the 3-D, time-averaged Navier-Stokes equations resulted in a parabolic form of the Navier-Stokes equations. The governing equations, expressed in terms of a new vector-potential formulation, are expanded as a multi-deck structure with each deck characterized by its dominant physical forces. The resulting equations are solved using a finite-element approach with a bicubic element representation on each cross-sectional plane. The numerical integration along the streamwise direction is carried out with finite-difference approximations until a fully-developed state is reached. The computed results agree well with other numerical studies and compare very favorably with the available experimental data. One important outcome of the current investigation is the interpretation analytically that the driving force of the secondary flow in a square duct comes mainly from the second-order terms of the difference in the gradients of the normal and transverse Reynolds stresses in the axial vorticity equation. |
| 类目[WOS] | Computer Science, Interdisciplinary Applications ; Mechanics |
| 研究领域[WOS] | Computer Science ; Mechanics |
| 关键词[WOS] | PREDICTION ; HEAT ; WALL |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:A1994LX56600011 |
| 公开日期 | 2009-08-03 ; 2010-08-20 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/39368]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Wang FM,Chew YT,Khoo BC,et al. Computation of turbulent-flow in a square duct - aspects of the secondary flow and its origin[J]. Computers & Fluids,1994,23(1):157-176. |
| APA | 王发民,Chew YT,Khoo BC,&Yeo KS.(1994).Computation of turbulent-flow in a square duct - aspects of the secondary flow and its origin.Computers & Fluids,23(1),157-176. |
| MLA | 王发民,et al."Computation of turbulent-flow in a square duct - aspects of the secondary flow and its origin".Computers & Fluids 23.1(1994):157-176. |
入库方式： OAI收割
来源：力学研究所
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