Assessment Results of Fluid-Structure Interaction Numerical Simulation Using Fuzzy Logic
2016
Autori
Marković, Zoran J.Stupar, Slobodan N.
Dinulovic, Mirko R.
Pekovic, Ognjen M.
Stefanović, Predrag Lj.
Cvetinović, Dejan
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
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.
Ključne reči:
thin-walled structure / fluid-structure interaction / fuzzy inference modelIzvor:
Thermal Science, 2016, 20, S235-S250Finansiranje / projekti:
- Smanjenje aerozagađenja iz termoelektrana u JP Elektroprivreda Srbije (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-42010)
- Poboljšanje kvaliteta i tehnologije sagorevanja domaćih lignita u cilju povećanja energetske efikasnosti i smanjenja emisije štetnih materija iz termoelektrana JP Elektroprivreda Srbije (RS-MESTD-Technological Development (TD or TR)-33050)
- Istraživanje i razvoj savremenih pristupa projektovanja kompozitnih lopatica rotora visokih performansi (RS-MESTD-Technological Development (TD or TR)-35035)
- Public Enterprise Electric Power Industry of Serbia, Belgrade, Serbia
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Marković, Zoran J. AU - Stupar, Slobodan N. AU - Dinulovic, Mirko R. AU - Pekovic, Ognjen M. AU - Stefanović, Predrag Lj. AU - Cvetinović, Dejan PY - 2016 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1147 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. T2 - Thermal Science T1 - Assessment Results of Fluid-Structure Interaction Numerical Simulation Using Fuzzy Logic VL - 20 SP - S235 EP - S250 DO - 10.2298/TSCI160111083M ER -
@article{ author = "Marković, Zoran J. and Stupar, Slobodan N. and Dinulovic, Mirko R. and Pekovic, Ognjen M. 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.", journal = "Thermal Science", title = "Assessment Results of Fluid-Structure Interaction Numerical Simulation Using Fuzzy Logic", volume = "20", pages = "S235-S250", doi = "10.2298/TSCI160111083M" }
Marković, Z. J., Stupar, S. N., Dinulovic, M. R., Pekovic, O. M., Stefanović, P. Lj.,& Cvetinović, D.. (2016). Assessment Results of Fluid-Structure Interaction Numerical Simulation Using Fuzzy Logic. in Thermal Science, 20, S235-S250. https://doi.org/10.2298/TSCI160111083M
Marković ZJ, Stupar SN, Dinulovic MR, Pekovic OM, 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 N., Dinulovic, Mirko R., Pekovic, Ognjen M., 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 . .