INFLUENCE OF TURBULENCE MODEL ON EXACTNESS CALCULATION OF WING AERODYNAMICS IN SUBSONIC STREAM

E. V. Кravets

Анотація


The analysis of some modern methods which provide the numerical simulation of the subsonic turbulent viscous flow with the complicated geometrical configuration bodies according to the "timeexactness" criterion is conducted. The three-dimensional simulation of viscous incompressible flowing around of wing with the profile of NACA-23012 by the finite elements method using six turbulence models is executed. The models used are the model of Spalart-Allmaras, the standard k-ε model, Menter model of Shear Stress Transport, the models of Large Eddy Simulation and Detached Eddy Simulation, the model of Scale Adaptive Simulation. Some of these turbulence models features, advantages and disadvantages are mentioned. In the issue of numerical research the diagrams of drag, lift and wing torque coefficients versus the angle of attack in the range of –8 ÷ 26 degrees at the value of Reynolds number 4.4·105 are got. The compared of the expected wing aerodynamic parameters to the results of Central Aero- and Hydrodynamic Institute (TsAGI) experiment is executed. The table of the calculating error values between the wing lift (numerical calculation) and similar data of aerodynamic experiment at the critical angle of attack is put. For the considered class of three-dimensional problems of flow with the complicated geometrical configuration objects by the viscous incompressible flow the models of turbulence which provide the minimum of the calculation time and the maximum of the got results exactness are recommended. Such advisable models are the model of Spalart-Allmaras and k-ω Menter model of Shear Stress Transport.

Ключові слова


incompressible flow of the viscous liquid; finite elements method; turbulence model; flow around the wing profile; boundary layer; three-dimensional simulating; drag; lift; torque; angle of attack

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Посилання


Гарбарук, А.В. Моделирование турбулентности в расчетах сложных течений: учебное пособие [Текст] / А.В. Гарбарук, М.Х. Стрелец, М.Л. Шур. – СПб.: Изд-во Политехн. Ун-та, 2012. – 88 с.

Кривцов, А.В. Изучение влияния качества сетки и моделей турбулентности на результаты CFD-расчета в ANSYS Fluent. Электрон. метод. указания к лаб. работам [Текст] / А.В.Кривцов, Л.С. Шаблий. − Самар. гос. аэрокосм. ун-т им. С.П. Королева. − Самара, 2013. − 47 с.

Приходько, А. А. Компьютерные технологии в аэрогидродинамике и

тепломассообмене [Текст] / А.А. Приходько. − К.: Наук. думка, 2003. − 380 с.

Радченко, П.И. Круговая обдувка профиля NACA 23012 в аэродинамической трубе Т-103Н ЦАГИ [Текст] / П.И. Радченко. − Технич. отчеты ЦАГИ им. проф. Н.Е. Жуковского. − 1959. − Вып. 161. − 24 с.

Kim, S.-E. Large eddy simulation using unstructured meshes and dynamic subgrid-scale turbulence models [Text] / S.-E. Kim // 34th Fluid Dynamics Conference and Exhibit American Institute of Aeronautics and Astronautics. Technical Report AIAA-2004-2548. − 2004. − 35 p.

Launder, B.E. Lectures in Mathematical Models of Turbulence [Text] / B.E. Launder, D.B. Spalding. − Academic Press. − London, England, 1972. − 169 p.

Menter, F.R. Two-Equation Eddy-Viscosity Turbulence Models for Engineering Applications [Text] / F.R. Menter // AIAA Journal. − 1994. − 32 (8). − P. 1598–1605.

Menter, F. The Scale-Adaptive Simulation Method for Unsteady Turbulent Flow Prediction. Part 1: Theory ans Model Description [Text] / F. Menter, Y.Egorov // Journal Flow Turbulence and Combustion. − 2010. − Vol. 85. − P. 113–138.

Reynolds, O. On the experimental investigation of the circumstances which determine whether the motion of water shall be direct or sinuous, and the law or resistance in parallel channels [Text] / O. Reynolds //Phill. Trans. Roy. Soc. − 1883. − № 174. − P. 935–982.

Saad, T. Turbulence modeling for beginners /T. Saad // University of Tennessee space institute – Access mode: http: www.cfd-online.com/W/images/3/31/ Turbulence_Modeling_For_Beginners.pdf.

Spalart, P.R. Strategies for turbulence modeling and simulations [Text] / P.R. Spalart //Int. J. Heat Fluid Flow. − 2000. − Vol. 21. − P. 252–263.

Spalart, P. A one-equation turbulence model for aerodynamic flows [Text] / P. Spalart, S. Allmaras //American Institute of Aeronautics and Astronautics. Technical Report AIAA-92-0439. − 1992. − 17 p.

Spalart, P. A new version of detached eddy simulation, resistant to ambiguous grid densyities [Text] /P. Spalart, S. Deck, M. Shur, K. Squires, M. Strelets, A. Travin // Theoretical and Computational Fluid Dynamics. − 2006. − Vol. 20. − P. 181–195.

Wilcox, D.C. Turbulence Modeling for CFD [Text] / D.C. Wilcox. − DCW Industries, Inc. La Canada, California, 1998. − 540 p.

[Electronic resourse] – Access mode: http://cadsolutions.narod.ru/Cfd/pages/fluentdoc/ userguid/p1/p1.html – Title from the screen.

[Electronic resourse] – Access mode: https://ru.wikipedia.org/wiki/Турбулентность – Title from the screen.


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