Two-dimensional numerical analysis of active flow control by steady blowing along foil suction side by different urans turbulence models
Апстракт
The effects of active separation control by steady blowing jets were investigated numerically on three different examples: subsonic flow past Aerospatiale A airfoil at 13 degrees angle-of-attack, transonic flow past NACA 0012 airfoil at 4 degrees angle-of attack, and transonic flow in linear compressor/turbine cascade. Performed analyses are two-dimensional, flow is turbulent (or transitional) while fluid is viscous and compressible. Jets are positioned along the suction sides of the foils, the first one being located just upstream of the separation point, and modeled by source terms added to flow equations. Several different jet diameters and intensities are investigated. As the choice of turbulence model affects the final solution of Reynolds equations, turbulence is modeled by four different models: Spalart-Allmaras, realizable k-epsilon, k-omega SST, and gamma-Re-theta, and a comparison of obtained results is performed. Goals of the study include definition of an adequate numerical... setting that enables sufficiently correct simulation of the problems in question as well as evaluation of the possible increase in aerodynamic performances. Lift coefficients, lift-to-drag ratios or relative pressure differences are improved for all controlled cases.
Кључне речи:
turbulence models / steady blowing / computational aerodynamics / airfoil cascades / active boundary layer controlИзвор:
Thermal Science, 2017, 21, S649-S662Издавач:
- Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
Финансирање / пројекти:
- Истраживање и развој савремених приступа пројектовања композитних лопатица ротора високих перформанси (RS-MESTD-Technological Development (TD or TR)-35035)
DOI: 10.2298/TSCI160126188S
ISSN: 0354-9836
WoS: 000418781900010
Scopus: 2-s2.0-85041668221
Институција/група
Inovacioni centarTY - JOUR AU - Svorcan, Jelena AU - Fotev, Vasko AU - Petrović, Nebojša AU - Stupar, Slobodan PY - 2017 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2607 AB - The effects of active separation control by steady blowing jets were investigated numerically on three different examples: subsonic flow past Aerospatiale A airfoil at 13 degrees angle-of-attack, transonic flow past NACA 0012 airfoil at 4 degrees angle-of attack, and transonic flow in linear compressor/turbine cascade. Performed analyses are two-dimensional, flow is turbulent (or transitional) while fluid is viscous and compressible. Jets are positioned along the suction sides of the foils, the first one being located just upstream of the separation point, and modeled by source terms added to flow equations. Several different jet diameters and intensities are investigated. As the choice of turbulence model affects the final solution of Reynolds equations, turbulence is modeled by four different models: Spalart-Allmaras, realizable k-epsilon, k-omega SST, and gamma-Re-theta, and a comparison of obtained results is performed. Goals of the study include definition of an adequate numerical setting that enables sufficiently correct simulation of the problems in question as well as evaluation of the possible increase in aerodynamic performances. Lift coefficients, lift-to-drag ratios or relative pressure differences are improved for all controlled cases. PB - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd T2 - Thermal Science T1 - Two-dimensional numerical analysis of active flow control by steady blowing along foil suction side by different urans turbulence models EP - S662 SP - S649 VL - 21 DO - 10.2298/TSCI160126188S ER -
@article{ author = "Svorcan, Jelena and Fotev, Vasko and Petrović, Nebojša and Stupar, Slobodan", year = "2017", abstract = "The effects of active separation control by steady blowing jets were investigated numerically on three different examples: subsonic flow past Aerospatiale A airfoil at 13 degrees angle-of-attack, transonic flow past NACA 0012 airfoil at 4 degrees angle-of attack, and transonic flow in linear compressor/turbine cascade. Performed analyses are two-dimensional, flow is turbulent (or transitional) while fluid is viscous and compressible. Jets are positioned along the suction sides of the foils, the first one being located just upstream of the separation point, and modeled by source terms added to flow equations. Several different jet diameters and intensities are investigated. As the choice of turbulence model affects the final solution of Reynolds equations, turbulence is modeled by four different models: Spalart-Allmaras, realizable k-epsilon, k-omega SST, and gamma-Re-theta, and a comparison of obtained results is performed. Goals of the study include definition of an adequate numerical setting that enables sufficiently correct simulation of the problems in question as well as evaluation of the possible increase in aerodynamic performances. Lift coefficients, lift-to-drag ratios or relative pressure differences are improved for all controlled cases.", publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd", journal = "Thermal Science", title = "Two-dimensional numerical analysis of active flow control by steady blowing along foil suction side by different urans turbulence models", pages = "S662-S649", volume = "21", doi = "10.2298/TSCI160126188S" }
Svorcan, J., Fotev, V., Petrović, N.,& Stupar, S.. (2017). Two-dimensional numerical analysis of active flow control by steady blowing along foil suction side by different urans turbulence models. in Thermal Science Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 21, S649-S662. https://doi.org/10.2298/TSCI160126188S
Svorcan J, Fotev V, Petrović N, Stupar S. Two-dimensional numerical analysis of active flow control by steady blowing along foil suction side by different urans turbulence models. in Thermal Science. 2017;21:S649-S662. doi:10.2298/TSCI160126188S .
Svorcan, Jelena, Fotev, Vasko, Petrović, Nebojša, Stupar, Slobodan, "Two-dimensional numerical analysis of active flow control by steady blowing along foil suction side by different urans turbulence models" in Thermal Science, 21 (2017):S649-S662, https://doi.org/10.2298/TSCI160126188S . .