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primary topic: Simulation analysis of thermal mixing characteristics of fluids flowing through a converging t-junction

Simulation analysis of thermal mixing characteristics of fluids flowing through a converging t-junction
type: AcademicArticle
type: Article
abstract: Temperature fluctuation occurs while mixing of hot and cold fluids in a T-junction due to incomplete thermal mixing. This temperature fluctuation can produce thermal fatigue at the weld area of the T-junction. The present study aims to numerically investigate the thermal mixing characteristics of hot and cold fluids in a T-junction. The realizable k-Îµ turbulence model is used with natural gas as the working fluid. Temperature distribution, mixing quality, and intensity of temperature fluctuation are evaluated and compared along with the mixing outlet. The inlet temperature difference and branch to main pipe flowrate ratio have a direct influence on thermal mixing. The higher temperature difference can reduce the thermal mixing performance. Thermal mixing increases with the increase of branch to main pipe flowrate. The intensity of temperature fluctuation is found within a short distance from the intersecting point of the two inlets. With the increase of distance along with the mixing outlet, the frequency of temperature fluctuation decreases, and thermal mixing increases. © 2021, Penerbit Akademia Baru. All rights reserved.
date: 2021
volume: 13
issue: 9
is part of: CFD Letters
status: peerReviewed
status: published
author list: authors
type: EPrint
type: ArticleEPrint
is part of: repository

Penerbit Akademia Baru
type: Organization

CFD Letters
type: Collection
issn: 21801363

H. Ya
type: Person
given name: H.
family name: Ya

F. Ejaz
type: Person
given name: F.
family name: Ejaz

M.A. Adar
type: Person
given name: M.A.
family name: Adar

M.R. Islam
type: Person
given name: M.R.
family name: Islam

M. Nuruzzaman
type: Person
given name: M.
family name: Nuruzzaman

W. Pao
type: Person
given name: W.
family name: Pao

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primary topic: Simulation analysis of thermal mixing characteristics of fluids flowing through a converging t-junction