Influence of Turbulence Model, Grid Resolution and Free-Stream Turbulence Intensity on the Numerical Simulation of the Flow Field around an Inclined Flat Plate

The flow field around a flat plate of infinite span has been investigated for several values of the angle of attack. Numerical predictions have been compared to experimental measurements, in order to examine the effect of turbulence model and grid resolution on the resultant aerodynamic forces acting on the plate. Also the influence of the free-stream turbulence intensity, at the entrance of the computational domain, has been investigated. A full campaign of simulations has been conducted for three inclination angles (9°, 15° and 30°), in order to obtain some practical guidelines to be used for the simulation of the flow field around inclined plates and discs.

Authors:

• M. Raciti Castelli
• P. Cioppa
• E. Benini

Keywords:

• CFD
• lift
• drag
• flat plate

References:

[1] M. Breuer and N. Jovicic, "Separated flow around a flat plate at high
incidence: an LES investigation", Journal of Turbulence, Volume 2,
Issue 1, pp. 018 (2001).
[2] A. Kasniunas, T. Robertson and Z. Howe, Hovercraft, Rose-Hulman
Institute of Technology, Terre Haute (Indiana), 2007.
[3] R. Yoshida, T. Yamamura and K. Kadota, "Propulsive Air Stream
Deflecting Apparatus for Air Cushion Vehicle", United States Patent
No. 5,007,495, Issued on Apr. 16, 1991.
[4] C. I. Cosoiu, A. Damian, R. M. Damian and M. Degeratu, "Numerical
and experimental investigation of wind induced pressures on a
photovoltaic solar panel", 4th IASME/WSEAS International Conference
on Energy, Environment, Ecosystems and Sustainable Development
(EEESD-08), Algrave (Portugal), June 11-13, 2008.
[5] Y. K. Suh and C. S. Liu, "Study on the flow structure around a flat plate
in a stagnation flow field", Journal of Fluid Mechanics, 214, pp. 469-
487, doi: 10.1017/S0022112090000210, 1990.
[6] K. Taira, W. B. Dickson, T. Colonius, M. H. Dickinson and C. W.
Rowley, "Unsteadiness in flow over a flat plate at angle-of-attack at low
Reynolds numbers", AIAA Paper 2007-710, 45th AIAA Aerospace
Sciences Meeting and Exhibit , January 2007.
[7] V. V. Bakić, G. S. Zivković and M. L. Pezo, "Numerical Simulation of
the Air Flow around the Arrays of Solar Collectors", Thermal Science,
Vol. 15, No. 2 (2011), pp. 457-465.
[8] M. Raciti Castelli, P. Cioppa, E. Benini, "Numerical Simulation of the
Flow Field around a Vertical Flat Plate of Infinite Extent", World
Academy of Science, Engineering and Technology, Issue 61, 2012, pp.
284-289.
[9] A. Fage and F. C. Johansen, "On the flow of air behind an inclined flat
plate of infinite span", Brit. Aero. Res. Coun. Rep. Memo. 1104, pp. 81-
106 (1927).
[10] M. Raciti Castelli, P. Cioppa, E. Benini, "Numerical Simulation of the
Flow Field around a 30┬░ Inclined Flat Plate", ICAMAME 2012:
International Conference on Aerospace, Mechanical, Automotive and
Materials Engineering, Florence (Italy), February 28-29, 2012.
[11] E. Benini and R. Ponza, "Laminar to Turbulent Boundary Layer
transition Investigation on a Supercritical Airfoil Using the ╬│-╬©
Transitional Model", 40th Fluid Dynamics Conference and Exhibit, 28
June - 1 July 2010, Chicago, Illinois, AIAA 2010-4289.
[12] M. Raciti Castelli, F. Garbo, E. Benini, "Turbulent Boundary Layer
Transition on a Naca 0012 Airfoil for Vertical-Axis Wind Turbine
Applications", Wind Engineering, Vol. 35, No. 6, 2011, pp. 661-686.