Numerical Analysis of Three Dimensional Dynamic Stall of an Oscillating Wing

- Journal title : Transactions of the Korean Society of Mechanical Engineers B
- Volume 25, Issue 1, 2001, pp.62-70
- Publisher : The Korean Society of Mechanical Engineers
- DOI : 10.22634/KSME-B.2001.25.1.62

Title & Authors

Numerical Analysis of Three Dimensional Dynamic Stall of an Oscillating Wing

Go, Seong-Ho;

Go, Seong-Ho;

Abstract

Three-dimensional dynamic stall over an oscillating wing has been analyzed by using a compressible Navier-Stokes code. The code solved the thin-layer Navirer-Stokes equations with a second-order time accuracy for a semispan wing with 0.3048m chord, a NACA 0015 airfoil section, and zero twist Computations were made for a freestream Mach number of 0.29, a chord Reynolds number of 1.9510(sup)6 and a reduced frequency equal to 0.1. Numerical results were compared with experimental data which include the hysteresis of lift, drag and moment at various wing span. The comparison reveals the quantitative as well as qualitative nature of the three-dimensional dynamic stall.

Keywords

Dynamic Stall;Wing;Separation;Turbulence Model;Navier-Stokes Computations;Numerical Analysis;

Language

Korean

References

1.

Walker, J.M., Helin, H.E., and Strikland, J.H., 1985, 'An Experimental Investigation of an Airfoil Undergoing Large Amplitude Pitching Motions,' AIAA J., Vol. 23, No. 8, pp. 1141-1142

2.

Freymuth, P., 1988, 'Propulsive Vortical Signature of Plunging and Pitching Airfoils,' AIAA J., Vol. 26, No. 6, pp. 881-883

3.

Metha, U.B. and Zalman, L., 1975, 'Starting Vortex, Separation Bubbles and Stall: A Numerical Study of Laminar Unsteady Flow Around an Airfoil,' J. Fluid Mechanics, Vol. 67, Pt. 2, pp. 227-256

4.

Ghosh Choudhuri, P., Knight, D.D., and Visbal, M.R., 1994, 'Two-Dimensional Unsteady Leading-Edge Separation on a Pitching Airfoil,' AIAA J., Vol. 32, No. 4, pp. 673-681

5.

Chandrasekhara, M.S. and Carr, L.W., 1990, 'Schlieren Studies of the Mach Number Effects on Dynamic Stall of an Oscillating Airfoil,' J. Aircraft, Vol. 27, No. 6, pp. 516-522

6.

Chandrasekhara, M.S., Ahmed, S., and Carr, L.W., 1993, 'Schlieren Studies of Compressibility Effects on Dynamic Stall of Transiently Pitching Airfoils,' J. Aircraft, Vol. 30, No. 2, pp. 213-220

7.

Van Dyken, R.D., Ekaterinaris, J.A., Chandrasekhara, M.S., and Platzer, M.F., 1994, 'Analysis of Transitional Reynolds Number Steady and Oscillatory Airfoil Flows,' AIAA Paper 94-2255

8.

Ekaterinaris, J.A. and Menter, F.R., 1994, 'Computation of Separated and Unsteady Flows with One and Two-Equation Turbulence Models,' AIAA Paper 94-0190

9.

Srinivasan, G.R., Ekaterinaris, J.A., and McCroskey, W.J., 1993, 'Dynamic Stall of an Oscillating Wing, Pt 1: Evaluation of Turbulence Models,' AIAA Paper 93-3403

10.

Ko, S.H. and McCroskey, W.J., 1997, 'Computations of Unsteady Separating Flows Over an Oscillating Airfoil,' AIAA J., Vol. 35, No. 7, pp. 1235-1238

11.

Schreck, S.J. and Helin, H.E., 1993, 'Unsteady Vortex Dynamics and Surface Pressure Topologies on a Pitching Wing,' AIAA Paper 93-0435

12.

Newsome, R.W., 1994, 'Navier-Stokes Simulation of Wing-Tip and Wing-Juncture Interaction for a Pitching Wing,' AIAA Paper 94-2259

13.

Lorber, P.F., Convino, A.F.Jr., and Carta, F.O., 1991, 'Dynamic Stall Experiments on a Swept Three Dimensional Wing in Compressible Flow,' AIAA Paper 91-1795

14.

Coton, F.N. and Galbraith, R.A.M., 1999, '(An) Experimental Study of Dynamic Stall on a Finite Wing,' The Aeronautical J. Vol. 103, No. 1023, pp. 229-236

15.

장조원, 박승오, 1999, '진동하는 날개의 Tip Vortex Roll-up에 관한 실험적 연구 I : 평균속도장,' 한국항공우주학회지, 27권, 5호, pp. 36-46

16.

Ekaterinaris, J.A., 1995, 'Numerical Investigation of Dynamic Stall of an Oscillating Wing,' AIAA J., Vol. 33, No. 10, pp. 1803-1808

17.

Piziali, R.A., 1994, '2-D and 3-D Oscillating Wing Aerodynamics for a Range of Angles of Attack Including Stall,' NASA TM 4632

18.

Roe, P.L., 1981, 'Approximate Riemann Solvers, Parameter Vectors, and Difference Schemes,' J. Computational Physics, Vol. 43, No. 2, pp. 357-372

19.

Jameson, A. and Yoon, S., 1987, 'Lower-Upper Implicit Schemes with Multiple Grids for the Euler Equations,' AIAA J., Vol. 25, No. 7, pp. 929-935

20.

Spalart, P.R. and Allmaras, S.R., 1992, 'A One-Equation Turbulence Model for Aerodynamic Flows,' AIAA Paper 92-0439

21.

고성호, 정주현, 1997, 'NACA0015 날개골의 동실속에 대한 수치해석,' 한국항공우주학회지, 25권, 3호, pp. 1-9