Assessment results of fluid-structure interaction numerical simulation using fuzzy logic
A fuzzy approximation concept is applied in order to predict results of coupled computational structure mechanics and computational fluid dynamics while solving a problem of steady incompressible gas flow through thermally loaded rectangular thin-walled channel. Channel wall deforms into wa...
Main Authors: | , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
VINCA Institute of Nuclear Sciences
2016-01-01
|
Series: | Thermal Science |
Subjects: | |
Online Access: | http://www.doiserbia.nb.rs/img/doi/0354-9836/2016/0354-98361600083M.pdf |
id |
doaj-a7269f50b58340c4bce5593fc01efabd |
---|---|
record_format |
Article |
spelling |
doaj-a7269f50b58340c4bce5593fc01efabd2021-01-02T07:18:31ZengVINCA Institute of Nuclear SciencesThermal Science0354-98362334-71632016-01-0120suppl. 123525010.2298/TSCI160111083M0354-98361600083MAssessment results of fluid-structure interaction numerical simulation using fuzzy logicMarković Zoran J.0Stupar Slobodan N.1Dinulović Mirko R.2Peković Ognjen M.3Stefanović Predrag Lj.4Cvetinović Dejan B.5Institute of Nuclear Sciences Vinča, Laboratory for thermal engineering and energy, BelgradeFaculty of Mechanical Engineering, department of aerospace engineering, BelgradeFaculty of Mechanical Engineering, department of aerospace engineering, BelgradeFaculty of Mechanical Engineering, department of aerospace engineering, BelgradeInstitute of Nuclear Sciences Vinča, Laboratory for thermal engineering and energy, BelgradeInstitute of Nuclear Sciences Vinča, Laboratory for thermal engineering and energy, BelgradeA fuzzy approximation concept is applied in order to predict results of coupled computational structure mechanics and computational fluid dynamics while solving a problem of steady incompressible gas flow through thermally loaded rectangular thin-walled channel. Channel wall deforms into wave - type shapes depending on thermal load and fluid inlet velocity inducing the changes of fluid flow accordingly. A set of fluid - structure interaction (FSI) numerical tests have been defined by varying the values of fluid inlet velocity, temperature of inner and outer surface of the channel wall and numerical grid density. The unsteady Navier-Stokes equations are numerically solved using an element-based finite volume method and second order backward Euler discretization scheme. The structural model is solved by finite element method including geometric and material nonlinearities. The implicit two-way iterative code coupling, partitioned solution approach, were used while solving these numerical tests. Results of numerical analysis indicate that gravity and pressure distribution inside the channel contributes to triggering the shape of deformation. In the inverse problem, the results of FSI numerical simulations formed a database of input variables for development fuzzy logic based models considering downstream pressure drop and maximum stresses as the objective functions. Developed fuzzy models predicted targeting results within a reasonable accuracy limit at lower computation cost compared to series of FSI numerical calculations. Smaller relative difference were obtained when calculating the values of pressure drop then maximal stresses indicating that transfer function influence on output values have to be additionally investigated. [Projekat Ministarstva nauke Republike Srbije, br. III42010, br.TR33050 i br. TR35035]http://www.doiserbia.nb.rs/img/doi/0354-9836/2016/0354-98361600083M.pdfthin-walled structurefluid-structure interactionfuzzy inference model |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Marković Zoran J. Stupar Slobodan N. Dinulović Mirko R. Peković Ognjen M. Stefanović Predrag Lj. Cvetinović Dejan B. |
spellingShingle |
Marković Zoran J. Stupar Slobodan N. Dinulović Mirko R. Peković Ognjen M. Stefanović Predrag Lj. Cvetinović Dejan B. Assessment results of fluid-structure interaction numerical simulation using fuzzy logic Thermal Science thin-walled structure fluid-structure interaction fuzzy inference model |
author_facet |
Marković Zoran J. Stupar Slobodan N. Dinulović Mirko R. Peković Ognjen M. Stefanović Predrag Lj. Cvetinović Dejan B. |
author_sort |
Marković Zoran J. |
title |
Assessment results of fluid-structure interaction numerical simulation using fuzzy logic |
title_short |
Assessment results of fluid-structure interaction numerical simulation using fuzzy logic |
title_full |
Assessment results of fluid-structure interaction numerical simulation using fuzzy logic |
title_fullStr |
Assessment results of fluid-structure interaction numerical simulation using fuzzy logic |
title_full_unstemmed |
Assessment results of fluid-structure interaction numerical simulation using fuzzy logic |
title_sort |
assessment results of fluid-structure interaction numerical simulation using fuzzy logic |
publisher |
VINCA Institute of Nuclear Sciences |
series |
Thermal Science |
issn |
0354-9836 2334-7163 |
publishDate |
2016-01-01 |
description |
A fuzzy approximation concept is applied in order to predict results of
coupled computational structure mechanics and computational fluid dynamics
while solving a problem of steady incompressible gas flow through thermally
loaded rectangular thin-walled channel. Channel wall deforms into wave - type
shapes depending on thermal load and fluid inlet velocity inducing the
changes of fluid flow accordingly. A set of fluid - structure interaction
(FSI) numerical tests have been defined by varying the values of fluid inlet
velocity, temperature of inner and outer surface of the channel wall and
numerical grid density. The unsteady Navier-Stokes equations are numerically
solved using an element-based finite volume method and second order backward
Euler discretization scheme. The structural model is solved by finite element
method including geometric and material nonlinearities. The implicit two-way
iterative code coupling, partitioned solution approach, were used while
solving these numerical tests. Results of numerical analysis indicate that
gravity and pressure distribution inside the channel contributes to
triggering the shape of deformation. In the inverse problem, the results of
FSI numerical simulations formed a database of input variables for
development fuzzy logic based models considering downstream pressure drop and
maximum stresses as the objective functions. Developed fuzzy models predicted
targeting results within a reasonable accuracy limit at lower computation
cost compared to series of FSI numerical calculations. Smaller relative
difference were obtained when calculating the values of pressure drop then
maximal stresses indicating that transfer function influence on output values
have to be additionally investigated. [Projekat Ministarstva nauke Republike
Srbije, br. III42010, br.TR33050 i br. TR35035] |
topic |
thin-walled structure fluid-structure interaction fuzzy inference model |
url |
http://www.doiserbia.nb.rs/img/doi/0354-9836/2016/0354-98361600083M.pdf |
work_keys_str_mv |
AT markoviczoranj assessmentresultsoffluidstructureinteractionnumericalsimulationusingfuzzylogic AT stuparslobodann assessmentresultsoffluidstructureinteractionnumericalsimulationusingfuzzylogic AT dinulovicmirkor assessmentresultsoffluidstructureinteractionnumericalsimulationusingfuzzylogic AT pekovicognjenm assessmentresultsoffluidstructureinteractionnumericalsimulationusingfuzzylogic AT stefanovicpredraglj assessmentresultsoffluidstructureinteractionnumericalsimulationusingfuzzylogic AT cvetinovicdejanb assessmentresultsoffluidstructureinteractionnumericalsimulationusingfuzzylogic |
_version_ |
1724357543554187264 |