Instability of helical tip vortices in rotor wakes

Journal of Fluid Mechanics

Volumn 682, Issue , 2011, Pages 1-4

  Sorensen J N ^a  

^a TECHNICAL UNIVERSITY OF DENMARK   (Denmark)

Author keywords

aerodynamics; vortex instability; wakes

Indexed keywords

AERODYNAMICS; WAKES;

BASIC MECHANISM; HELICAL VORTICES; INSTABILITY MECHANISMS; ROTOR WAKE; TIP VORTEX; VORTEX INSTABILITY;

VORTEX FLOW;

AERODYNAMICS; EXPERIMENTAL STUDY; FLOW STABILITY; FLUID MECHANICS; VORTEX FLOW; VORTICITY; WAKE;

EID: 80052157900     PISSN: 00221120     EISSN: 14697645     Source Type: Journal    
DOI: 10.1017/jfm.2011.277     Document Type: Article

References (13)

1. Bhagwat, M J. & Leishman, J. G. 2000 Stability analysis of helicopter rotor wakes in axial flight. J. Am. Helicopter Assoc. 45, 165-178.
2. Bolnot, T, Leweke, T. & Le Dizès, S. 2011 Spatio-temporal development of the pairing instability in helical vortices. AIAA Paper 2011-3927.
3. Breslin, J P. & Andersen, P. 1994 Hydrodynamics of Ship Propellers. Cambridge University Press.
4. Conlisk, A T. 2001 Modern helicopter rotor aerodynamics. Prog. Aerosp. Sci. 37, 419-476. (Pubitemid 32836731)
5. Felli, M, Camussi, R. & Di Felice, F. 2011 Mechanisms of evolution of the propeller wake in the transition and far fields. J. Fluid Mech. 682, 5-53.
6. Gupta, B P. & Loewy, R. G. 1974 Theoretical analysis of the aerodynamic stability of multiple, interdigitated helical vortices. AIAA J. 12, 1381-1387.
7. Ivanell, S, Mikkelsen, R., Sørensen, J. N. & Henningson, D. 2010 Stability analysis of the tip vortices of a wind turbine. Wind Energy 13, 705-715.
8. Levy, H & Forsdyke, A. G. 1928 The steady motion and stability of a helical vortex. Proc. R. Soc. Lond. A 120, 670-690.
9. Okulov, V L. 2004 On the stability on multiple helical vortices. J. Fluid Mech. 521, 319-342.
10. Okulov, V L. & Sørensen, J. N. 2007 Stability of helical tip vortices in a rotor far wake. J. Fluid Mech. 576, 1-25. (Pubitemid 47039341)
11. Sørensen, J. N. & Shen, W. Z. 2002 Numerical modeling of wind turbine wakes. J. Fluids Engng 124, 393-399. (Pubitemid 40005736)
12. Vermeer, L J., Sørensen, J. N. & Crespo, A. 2003 Wind turbine wake aerodynamics. Prog. Aerosp. Sci. 39, 467-510.
13. Widnall, S E. 1972 The stability of a helical vortex filament. J. Fluid Mech. 54, 641-663.