RANS analysis of the transitional flow around airfoils at low Reynolds number
Само за регистроване кориснике
2013
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Flows over airfoils have been a subject of a number of recent researches, conducted both by
experimental and computational means. The aerodynamic performance of airfoils can be highly
influenced by laminar-turbulent transition in the boundary layer. A numerical analysis of the
incompressible flow around SD7003 and S809 airfoils was conducted using ANSYS Fluent 14.
Their aerodynamic performance are highly influenced by laminar-turbulent transition in the
boundary layer that was evident for investigated range of Reynolds numbers and angles of attacks.
RANS equations were closed by three different turbulence models. In order to establish which
model more appropriately describes the investigated flow, Spalart-Allmaras, k-ω SST and
γ-Reθ (Transition SST) models were used. In addition to flow simulations based on finite volume
method, viscous-inviscid panel method available in X-Foil was used to compute airfoils
performance. The drag and lift curves of the airfoils have been comput...ed. The results were compared to available experimental results. Currently standard turbulence models such as Spalart-Allmaras and k-ω SST have limited possibilities in terms of capturing complex recirculating region of flow on upper surface of airfoil. Transition SST model gave promising results and should be further tested. Nevertheless, standard turbulence models could be utilized more successfully with certain level of customization and combining with available methods for transition prediction, such
as e^N method. Generally, Transition SST turbulence model gave better results comparing to
Spalart-Allmaras and k-ω SST models.
Извор:
48th International Symposium of Applied Aerodynamics (3AF), Saint-Louis, 25-27 March 2013, 2013, FP08-2013-komarov-Издавач:
- 3AF – Association Aéronautique et Astronautique de France
Финансирање / пројекти:
- Истраживање и развој савремених приступа пројектовања композитних лопатица ротора високих перформанси (RS-MESTD-Technological Development (TD or TR)-35035)
Колекције
Институција/група
Mašinski fakultetTY - CONF AU - Komarov, Dragan AU - Svorcan, Jelena AU - Stupar, Slobodan AU - Simonović, Aleksandar AU - Isaković, Jovan PY - 2013 UR - https://machinery.mas.bg.ac.rs/handle/123456789/4457 AB - Flows over airfoils have been a subject of a number of recent researches, conducted both by experimental and computational means. The aerodynamic performance of airfoils can be highly influenced by laminar-turbulent transition in the boundary layer. A numerical analysis of the incompressible flow around SD7003 and S809 airfoils was conducted using ANSYS Fluent 14. Their aerodynamic performance are highly influenced by laminar-turbulent transition in the boundary layer that was evident for investigated range of Reynolds numbers and angles of attacks. RANS equations were closed by three different turbulence models. In order to establish which model more appropriately describes the investigated flow, Spalart-Allmaras, k-ω SST and γ-Reθ (Transition SST) models were used. In addition to flow simulations based on finite volume method, viscous-inviscid panel method available in X-Foil was used to compute airfoils performance. The drag and lift curves of the airfoils have been computed. The results were compared to available experimental results. Currently standard turbulence models such as Spalart-Allmaras and k-ω SST have limited possibilities in terms of capturing complex recirculating region of flow on upper surface of airfoil. Transition SST model gave promising results and should be further tested. Nevertheless, standard turbulence models could be utilized more successfully with certain level of customization and combining with available methods for transition prediction, such as e^N method. Generally, Transition SST turbulence model gave better results comparing to Spalart-Allmaras and k-ω SST models. PB - 3AF – Association Aéronautique et Astronautique de France C3 - 48th International Symposium of Applied Aerodynamics (3AF), Saint-Louis, 25-27 March 2013 T1 - RANS analysis of the transitional flow around airfoils at low Reynolds number SP - FP08-2013-komarov UR - https://hdl.handle.net/21.15107/rcub_machinery_4457 ER -
@conference{ author = "Komarov, Dragan and Svorcan, Jelena and Stupar, Slobodan and Simonović, Aleksandar and Isaković, Jovan", year = "2013", abstract = "Flows over airfoils have been a subject of a number of recent researches, conducted both by experimental and computational means. The aerodynamic performance of airfoils can be highly influenced by laminar-turbulent transition in the boundary layer. A numerical analysis of the incompressible flow around SD7003 and S809 airfoils was conducted using ANSYS Fluent 14. Their aerodynamic performance are highly influenced by laminar-turbulent transition in the boundary layer that was evident for investigated range of Reynolds numbers and angles of attacks. RANS equations were closed by three different turbulence models. In order to establish which model more appropriately describes the investigated flow, Spalart-Allmaras, k-ω SST and γ-Reθ (Transition SST) models were used. In addition to flow simulations based on finite volume method, viscous-inviscid panel method available in X-Foil was used to compute airfoils performance. The drag and lift curves of the airfoils have been computed. The results were compared to available experimental results. Currently standard turbulence models such as Spalart-Allmaras and k-ω SST have limited possibilities in terms of capturing complex recirculating region of flow on upper surface of airfoil. Transition SST model gave promising results and should be further tested. Nevertheless, standard turbulence models could be utilized more successfully with certain level of customization and combining with available methods for transition prediction, such as e^N method. Generally, Transition SST turbulence model gave better results comparing to Spalart-Allmaras and k-ω SST models.", publisher = "3AF – Association Aéronautique et Astronautique de France", journal = "48th International Symposium of Applied Aerodynamics (3AF), Saint-Louis, 25-27 March 2013", title = "RANS analysis of the transitional flow around airfoils at low Reynolds number", pages = "FP08-2013-komarov", url = "https://hdl.handle.net/21.15107/rcub_machinery_4457" }
Komarov, D., Svorcan, J., Stupar, S., Simonović, A.,& Isaković, J.. (2013). RANS analysis of the transitional flow around airfoils at low Reynolds number. in 48th International Symposium of Applied Aerodynamics (3AF), Saint-Louis, 25-27 March 2013 3AF – Association Aéronautique et Astronautique de France., FP08-2013-komarov. https://hdl.handle.net/21.15107/rcub_machinery_4457
Komarov D, Svorcan J, Stupar S, Simonović A, Isaković J. RANS analysis of the transitional flow around airfoils at low Reynolds number. in 48th International Symposium of Applied Aerodynamics (3AF), Saint-Louis, 25-27 March 2013. 2013;:FP08-2013-komarov. https://hdl.handle.net/21.15107/rcub_machinery_4457 .
Komarov, Dragan, Svorcan, Jelena, Stupar, Slobodan, Simonović, Aleksandar, Isaković, Jovan, "RANS analysis of the transitional flow around airfoils at low Reynolds number" in 48th International Symposium of Applied Aerodynamics (3AF), Saint-Louis, 25-27 March 2013 (2013):FP08-2013-komarov, https://hdl.handle.net/21.15107/rcub_machinery_4457 .