Assessment results of fluid-structure interaction numerical simulation using fuzzy logic
2016
Аутори
Marković, Zoran J.Stupar, Slobodan
Dinulović, Mirko
Peković, Ognjen
Stefanović, Predrag Lj.
Cvetinović, Dejan
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
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 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 non-linearities. 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 fluid-structure interaction 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 fluid-structure interaction 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.
Кључне речи:
thin-walled structure / fuzzy inference model / fluid-structure interactionИзвор:
Thermal Science, 2016, 20, S235-S250Издавач:
- Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
Финансирање / пројекти:
- Public Enterprise Electric Power Industry of Serbia, Belgrade, Serbia
- Смањење аерозагађења из термоелектрана у ЈП Електропривреда Србије (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-42010)
- Побољшање квалитета и технологије сагоревања домаћих лигнита у циљу повећања енергетске ефикасности и смањења емисије штетних материја из термоелектрана ЈП Електропривреда Србије (RS-MESTD-Technological Development (TD or TR)-33050)
- Истраживање и развој савремених приступа пројектовања композитних лопатица ротора високих перформанси (RS-MESTD-Technological Development (TD or TR)-35035)
DOI: 10.2298/TSCI160111083M
ISSN: 0354-9836
WoS: 000378584200021
Scopus: 2-s2.0-85121898213
Институција/група
Inovacioni centarTY - JOUR AU - Marković, Zoran J. AU - Stupar, Slobodan AU - Dinulović, Mirko AU - Peković, Ognjen AU - Stefanović, Predrag Lj. AU - Cvetinović, Dejan PY - 2016 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2304 AB - 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 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 non-linearities. 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 fluid-structure interaction 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 fluid-structure interaction 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. PB - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd T2 - Thermal Science T1 - Assessment results of fluid-structure interaction numerical simulation using fuzzy logic EP - S250 SP - S235 VL - 20 DO - 10.2298/TSCI160111083M ER -
@article{ author = "Marković, Zoran J. and Stupar, Slobodan and Dinulović, Mirko and Peković, Ognjen and Stefanović, Predrag Lj. and Cvetinović, Dejan", year = "2016", abstract = "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 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 non-linearities. 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 fluid-structure interaction 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 fluid-structure interaction 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.", publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd", journal = "Thermal Science", title = "Assessment results of fluid-structure interaction numerical simulation using fuzzy logic", pages = "S250-S235", volume = "20", doi = "10.2298/TSCI160111083M" }
Marković, Z. J., Stupar, S., Dinulović, M., Peković, O., Stefanović, P. Lj.,& Cvetinović, D.. (2016). Assessment results of fluid-structure interaction numerical simulation using fuzzy logic. in Thermal Science Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 20, S235-S250. https://doi.org/10.2298/TSCI160111083M
Marković ZJ, Stupar S, Dinulović M, Peković O, Stefanović PL, Cvetinović D. Assessment results of fluid-structure interaction numerical simulation using fuzzy logic. in Thermal Science. 2016;20:S235-S250. doi:10.2298/TSCI160111083M .
Marković, Zoran J., Stupar, Slobodan, Dinulović, Mirko, Peković, Ognjen, Stefanović, Predrag Lj., Cvetinović, Dejan, "Assessment results of fluid-structure interaction numerical simulation using fuzzy logic" in Thermal Science, 20 (2016):S235-S250, https://doi.org/10.2298/TSCI160111083M . .