Laminar Heat and Fluid Flow Characteristic with a Modified Temperature-Dependent Viscosity Model in a Rectangular Duct

被引：0
|
作者：
Chang-Hyun Sohn
Jae-Whan Chang
机构：
[1] Kyungpook National University,School of Mechanical Engineering
[2] Korea Powertrain Co.,undefined
来源：
Journal of Mechanical Science and Technology | 2006年 / 20卷
关键词：
Viscoelastic Fluid; Non-Newtonian Fluid; Non-Newtonian Viscosity Model; Temperature-Dependent Viscosity Model; Second Normal Stress Difference;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The present study proposes a modified temperature-dependent non-Newtonian viscosity model and investigates the flow characteristics and heat transfer enhancement of the viscoelastic non-Newtonian fluid in a 2:1 rectangular duct. The combined effects of temperature dependent viscosity, buoyancy, and secondary flow caused by the second normal stress difference are considered. Calculated Nusselt numbers by the modified temperature-dependent viscosity model give good agreement with the experimental results. The heat transfer enhancement of viscoelastic fluid in a rectangular duct is highly dependent on the secondary flow caused by the magnitude of second normal stress difference.
引用
收藏
页码：382 / 390
页数：8
相关论文
共 50 条
12345