Characteristics of Heat Transfer and Fluid Diffusion in a Heat Transfer Enhanced Duct
[1]Wang Yongqing,Zhu Bing,Zhao Di,et al.Characteristics of Heat Transfer and Fluid Diffusion in a Heat Transfer Enhanced Duct[J].Journal of Zhengzhou University (Engineering Science),2017,38(01):41-.[doi:10.13705/j.issn.1671-6833.2017.01.002]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
38卷
Number of periods:
2017 01
Page number:
41-
Column:
Public date:
2017-02-24
- Title:
- Characteristics of Heat Transfer and Fluid Diffusion in a Heat Transfer Enhanced Duct
- CLC:
- -
- DOI:
- 10.13705/j.issn.1671-6833.2017.01.002
- Abstract:
- The characteristics of a flow duct with orthogonal waves were numerical studied by using CFD code Fluent with a lower Reynolds number.The numerical simulations were verified by experimental results.The result indicated that heat transfer was enhanced in the duct with a lower fluid velocity.With the impact of duct geometry and fluid vicious force,the relative positions between streamlines and distribution of fluid velocity varied greatly with the fluid locations.Second flow came into being on cross sections along the duct.Fluid continually received strong function of stretching and folding,bearing varied bigger transverse velocity component.The magnitude and direction of fluid changed with the locations,and the intensity of stretching and folding changed as well.A complex 3D flow field was formed in the duct,which enhanced fluid mixing and heat transfer.The results and method could provide references for mechanism analysis and structure development.
- References:
- -
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