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3D fluid-structure interaction (FSI) simulation of new type vortex generators in smooth wavy fin-and-elliptical tube heat exchanger

Lotfi, Babak; Wang, Qiu-wang and Sunden, Bengt LU (2016) In Engineering Computations 33(8). p.2504-2529
Abstract

Purpose - The purpose of this paper is to investigate the numerical fluid-structure interaction (FSI) framework for the simulations of mechanical behavior of new vortex generators (VGs) in smooth wavy fin-and-elliptical tube (SWFET) heat exchanger using the ANSYS MFX Multi-field® solver. Design/methodology/approach - A three-dimensional FSI approach is proposed in this paper to provide better understanding of the performance of the VG structures in SWFET heat exchangers associated with the alloy material properties and geometric factors. The Reynolds-averaged Navier-Stokes equations with shear stress transport turbulence model are applied for modeling of the turbulent flow in SWFET heat exchanger and the linear elastic Cauchy-Navier... (More)

Purpose - The purpose of this paper is to investigate the numerical fluid-structure interaction (FSI) framework for the simulations of mechanical behavior of new vortex generators (VGs) in smooth wavy fin-and-elliptical tube (SWFET) heat exchanger using the ANSYS MFX Multi-field® solver. Design/methodology/approach - A three-dimensional FSI approach is proposed in this paper to provide better understanding of the performance of the VG structures in SWFET heat exchangers associated with the alloy material properties and geometric factors. The Reynolds-averaged Navier-Stokes equations with shear stress transport turbulence model are applied for modeling of the turbulent flow in SWFET heat exchanger and the linear elastic Cauchy-Navier model is solved for the structural von Mises stress and elastic strain analysis in the VGs region. Findings - Parametric studies conducted in the course of this research successfully identified illustrate that the maximum magnitude of von Mises stress and elastic strain occurs at the root of the VGs and depends on geometrical parameters and material types. These results reveal that the titanium alloy VGs shows a slightly higher strength and lower elastic strain compared to the aluminum alloy VGs. Originality/value - This paper is one of the first in the literature that provides original information mechanical behavior of a SWFET heat exchanger model with new VGs in the field of FSI coupling technique.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
CFD/CSD simulation, Fluid-structure interaction (FSI), Smooth wavy fin-and-elliptical tube heat exchanger, Stress and strain characteristics, Vortex generators
in
Engineering Computations
volume
33
issue
8
pages
26 pages
publisher
Emerald Group Publishing Limited
external identifiers
  • scopus:84992390343
  • wos:000386792800014
ISSN
0264-4401
DOI
10.1108/EC-04-2015-0091
language
English
LU publication?
yes
id
d06f4bc2-ff39-4632-b9e4-b88ea6a29853
date added to LUP
2017-04-25 09:48:20
date last changed
2017-09-18 13:33:10
@article{d06f4bc2-ff39-4632-b9e4-b88ea6a29853,
  abstract     = {<p>Purpose - The purpose of this paper is to investigate the numerical fluid-structure interaction (FSI) framework for the simulations of mechanical behavior of new vortex generators (VGs) in smooth wavy fin-and-elliptical tube (SWFET) heat exchanger using the ANSYS MFX Multi-field® solver. Design/methodology/approach - A three-dimensional FSI approach is proposed in this paper to provide better understanding of the performance of the VG structures in SWFET heat exchangers associated with the alloy material properties and geometric factors. The Reynolds-averaged Navier-Stokes equations with shear stress transport turbulence model are applied for modeling of the turbulent flow in SWFET heat exchanger and the linear elastic Cauchy-Navier model is solved for the structural von Mises stress and elastic strain analysis in the VGs region. Findings - Parametric studies conducted in the course of this research successfully identified illustrate that the maximum magnitude of von Mises stress and elastic strain occurs at the root of the VGs and depends on geometrical parameters and material types. These results reveal that the titanium alloy VGs shows a slightly higher strength and lower elastic strain compared to the aluminum alloy VGs. Originality/value - This paper is one of the first in the literature that provides original information mechanical behavior of a SWFET heat exchanger model with new VGs in the field of FSI coupling technique.</p>},
  author       = {Lotfi, Babak and Wang, Qiu-wang and Sunden, Bengt},
  issn         = {0264-4401},
  keyword      = {CFD/CSD simulation,Fluid-structure interaction (FSI),Smooth wavy fin-and-elliptical tube heat exchanger,Stress and strain characteristics,Vortex generators},
  language     = {eng},
  number       = {8},
  pages        = {2504--2529},
  publisher    = {Emerald Group Publishing Limited},
  series       = {Engineering Computations},
  title        = {3D fluid-structure interaction (FSI) simulation of new type vortex generators in smooth wavy fin-and-elliptical tube heat exchanger},
  url          = {http://dx.doi.org/10.1108/EC-04-2015-0091},
  volume       = {33},
  year         = {2016},
}