Computational Investigation of Turbulent Flow Development in 180° Channel with Circular Cross Section

Md. Safayet Hossain and Md. Ishtiaque Hossain
Additional contact information
Md. Safayet Hossain: Chittagong University of Engineering & Technology, Bangladesh
Md. Ishtiaque Hossain: Chittagong University of Engineering & Technology, Bangladesh

European Journal of Engineering and Technology Research, 2018, vol. 3, issue 12, 98-105

Abstract: The present study focuses on the analysis of flow characteristics inside a 180° bent channel by adopting two distinct RANS model namely, Realizable k-? and Reynolds Stress Model (RSM). The computation results, obtained from both case study have been validated against experimental data at different cross-sections throughout the bend region and downstream tangent for velocity distribution. The anisotropic behavior of turbulent flow was illustrated for both case study inside the bend region and it has been established that after 3° the flow gradually became more intense at the outer core. Pressure coefficient throughout the u-channel was depicted for both turbulence model and a characteristic feature has been obtained. Due to centrifugal force and high inlet Reynolds number, a pair of counter-rotating Dean vortices were constructed at different stations inside the bend region. From both demonstrations, it was revealed that, Realizable k-? model provided relatively better approximation.

Keywords: Dean Vortices; 180° Bent Pipe; Turbulent Flow; Realizable k-ϵ Model; RSM; Pressure Coefficient (search for similar items in EconPapers)
Date: 2018
References: Add references at CitEc
Citations:

Downloads: (external link)
https://eu-opensci.org/index.php/ejeng/article/view/61009 Abstract page (text/html)
https://eu-opensci.org/index.php/ejeng/article/download/61009/11988 Full text (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:epw:ejeng0:v:3:y:2018:i:12:id:61009

DOI: 10.24018/ejeng.2018.3.12.1009

Access Statistics for this article

More articles in European Journal of Engineering and Technology Research from European Open Science
Bibliographic data for series maintained by Support ().