Analysis of Dynamic Stall on a Pitching Airfoil Using High-Fidelity Large-Eddy Simulations

The onset of unsteady separation and dynamic stall vortex formation over a constant-rate pitching airfoil is analyzed by means of high-fidelity large-eddy simulations. The flowfields are computed b...

[1]  J. H. Strickland,et al.  Force coefficients for a NACA-0015 airfoil undergoing constant pitchrate motions , 1987 .

[2]  Akira Oyama,et al.  Significance of computational spanwise domain length on LES for the flowfield with large vortex structure , 2016 .

[3]  Jeffrey L. Young,et al.  Practical aspects of higher-order numerical schemes for wave propagation phenomena , 1999 .

[4]  W. Mccroskey,et al.  Analysis of the development of dynamic stall based on oscillating airfoil experiments , 1977 .

[5]  Doyle Knight,et al.  Two-Dimensional Unsteady Leading-Edge Separation on a Pitching Airfoil , 1994 .

[6]  Jinhee Jeong,et al.  On the identification of a vortex , 1995, Journal of Fluid Mechanics.

[7]  I. Tani.  Low-speed flows involving bubble separations , 1964 .

[8]  Miguel R. Visbal,et al.  Pitch rate and pitch-axis location effects on vortex breakdown onset , 1995 .

[9]  Miguel R. Visbal,et al.  On the use of higher-order finite-difference schemes on curvilinear and deforming meshes , 2002 .

[10]  C. R. Smith,et al.  Vortex Interactions with Walls , 1994 .

[11]  Marcel Vinokur,et al.  Conservation equations of gasdynamics in curvilinear coordinate systems , 1974 .

[12]  L. Carr.  Progress in analysis and prediction of dynamic stall , 1988 .

[13]  Lars E. Ericsson,et al.  Fluid dynamics of unsteady separated flow. Part II. Lifting surfaces , 1987 .

[14]  Christer Fureby,et al.  Large-Eddy Simulation: Current Capabilities, Recommended Practices, and Future Research , 2009 .

[15]  Miguel R. Visbal,et al.  Investigation of High-Frequency Separation Control Mechanisms for Delay of Unsteady Separation , 2016 .

[16]  O. Lambert,et al.  Dynamic Stall on Advanced Airfoil Sections , 1981 .

[17]  R. Pletcher,et al.  Computational Fluid Mechanics and Heat Transfer. By D. A ANDERSON, J. C. TANNEHILL and R. H. PLETCHER. Hemisphere, 1984. 599 pp. $39.95. , 1986, Journal of Fluid Mechanics.

[18]  Miguel R. Visbal,et al.  Dynamic stall of a constant-rate pitching airfoil , 1990 .

[19]  Tim Lee,et al.  Investigation of flow over an oscillating airfoil , 2004, Journal of Fluid Mechanics.

[20]  Joseph Mathew,et al.  An explicit filtering method for large eddy simulation of compressible flows , 2003 .

[21]  Miguel R. Visbal,et al.  Numerical Exploration of Flow Control for Delay of Dynamic Stall on a Pitching Airfoil , 2014 .

[22]  L. Carr,et al.  Compressibility effects on dynamic stall , 1996 .

[23]  Miguel R. Visbal,et al.  Further development of a Navier-Stokes solution procedure based on higher-order formulas , 1999 .

[24]  S. Lele.  Compact finite difference schemes with spectral-like resolution , 1992 .

[25]  W. C. Reynolds,et al.  Review of Unsteady, Driven, Separated Flows , 1985 .

[26]  Max F. Platzer,et al.  Computational prediction of airfoil dynamic stall , 1998 .

[27]  Miguel R. Visbal,et al.  Comparative study of implicit and subgrid‐scale model large‐eddy simulation techniques for low‐Reynolds number airfoil applications , 2013 .

[28]  Christian Oliver Paschereit,et al.  Control of Thick Airfoil, Deep Dynamic Stall Using Steady Blowing , 2015 .

[29]  Miguel R. Visbal,et al.  High-Order-Accurate Methods for Complex Unsteady Subsonic Flows , 1999 .

[30]  Rodney D. W. Bowersox,et al.  Leading-Edge Flow Structure of a Dynamically Pitching NACA 0012 Airfoil , 2013 .

[31]  Michael Amitay,et al.  Dynamic stall process on a finite span model and its control via synthetic jet actuators , 2015 .

[32]  K. Mulleners,et al.  The onset of dynamic stall revisited , 2012 .

[33]  Peter F. Lorber,et al.  Airfoil dynamic stall at constant pitch rate and high Reynolds number , 1987 .

[34]  Eric J. Jumper,et al.  Lift-curve characteristics for an airfoil pitching at constant rate , 1986 .

[35]  Miguel R. Visbal,et al.  High-Frequency Forcing to Delay Dynamic Stall at Relevant Reynolds Number , 2017 .

[36]  N. Adams,et al.  An approximate deconvolution procedure for large-eddy simulation , 1999 .

[37]  Miguel R. Visbal,et al.  Large-Eddy Simulation on Curvilinear Grids Using Compact Differencing and Filtering Schemes , 2002 .

[38]  Rand N. Conger,et al.  Pressure measurements on a pitching airfoil in a water channel , 1993 .

[39]  Miguel R. Visbal,et al.  Airfoil Thickness Effects on Dynamic Stall Onset , 2017 .

[40]  L. W. Carr,et al.  Water Tunnel Visualizations of Dynamic Stall , 1979 .

[41]  J. Steger.  Implicit Finite-Difference Simulation of Flow about Arbitrary Two-Dimensional Geometries , 1978 .

[42]  Miguel R. Visbal,et al.  Numerical Investigation of Spanwise End Effects on Dynamic Stall of a Pitching NACA 0012 Wing , 2017 .

[43]  Pinhas Alpert,et al.  Implicit Filtering in Conjunction with Explicit Filtering , 1981 .

[44]  Philip E. Morgan,et al.  An Implicit LES Approach Based on High-order Compact Differencing and Filtering Schemes (Invited) , 2003 .

[45]  Miguel R. Visbal,et al.  Numerical Investigation of Deep Dynamic Stall of a Plunging Airfoil , 2010 .

[46]  M. Visbal,et al.  Numerical investigation of transitional flow over a rapidly pitching plate , 2011 .

[47]  M. Visbal,et al.  Investigation of the flow structure around a rapidly pitching airfoil , 1989 .

[48]  Miguel R. Visbal,et al.  Analysis of the Onset of Dynamic Stall Using High-Fidelity Large-Eddy Simulations , 2014 .

[49]  Miguel R. Visbal,et al.  High-Fidelity Simulation of Transitional Flows Past a Plunging Airfoil , 2009 .

[50]  M. Visbal,et al.  Unsteady Evolution of the Tip Vortex on a Stationary and Oscillating NACA0012 Wing , 2016 .

[51]  U. B. Mehta,et al.  Dynamic stall of an oscillating airfoil , 1978 .