All Stories

  1. Power Properties of Two Interacting Wind Turbine Rotors

    Article • Journal of Energy Resources Technology, March 2017, ASME International

    Professor Valery L. Okulov

  2. On the peculiar structure of a helical wake vortex behind an inclined prolate spheroid

    Article • Journal of Fluid Mechanics, July 2016, Cambridge University Press

    Professor Valery L. Okulov, Dr. Fengjian Jiang

  3. An acentric rotation of two helical vortices of the same circulations

    Article • Regular and Chaotic Dynamics, May 2016, Pleiades Publishing Ltd

    Professor Valery L. Okulov

  4. Multiple vortex structures in the wake of a rectangular winglet in ground effect

    Article • Experimental Thermal and Fluid Science, April 2016, Elsevier

    Professor Valery L. Okulov

  5. Comparison of Far Wake behind Solid Disk and Three Blades Rotor

    Article • Journal of Flow Visualization and Image Processing, January 2016, Begell House

    Professor Valery L. Okulov

  6. The Contribution of Kawada to the Analytical Solution for the Velocity Induced by a Helical Vortex Filament

    Article • Applied Mechanics Reviews, December 2015, ASME International

    Professor Valery L. Okulov

  7. The rotor theories by Professor Joukowsky: Vortex theories

    Article • Progress in Aerospace Sciences, February 2015, Elsevier

    Professor Valery L. Okulov

  8. Rotor theories by Professor Joukowsky: Momentum theories

    Article • Progress in Aerospace Sciences, February 2015, Elsevier

    Professor Valery L. Okulov

  9. Limit cases for rotor theories with Betz optimization

    Article • Journal of Physics Conference Series, June 2014, Institute of Physics Publishing

    Professor Valery L. Okulov

  10. A regular Strouhal number for large-scale instability in the far wake of a rotor

    Article • Journal of Fluid Mechanics, April 2014, Cambridge University Press

    Professor Valery L. Okulov

  11. Testing of rotor vortex theories using Betz optimization

    Article • Doklady Physics, January 2014, Pleiades Publishing Ltd

    Professor Valery L. Okulov

  12. The Aerodynamics of Wind Turbines

    Article • January 2013, Springer Science + Business Media

    Professor Valery L. Okulov

  13. Regimes of flow past a vortex generator

    Article • Technical Physics Letters, April 2012, Pleiades Publishing Ltd

    Professor Valery L. Okulov

  14. Multiple helical modes of vortex breakdown

    Article • Journal of Fluid Mechanics, August 2011, Cambridge University Press

    Professor Valery L. Okulov

  15. Alteration of helical vortex core without change in flow topology

    Article • Physics of Fluids, May 2011, American Institute of Physics

    Professor Valery L. Okulov

  16. The Betz-Joukowsky limit: on the contribution to rotor aerodynamics by the British, German and Russian scientific schools

    Article • Wind Energy, April 2011, Wiley

    Professor Valery L. Okulov

  17. Explanation of visual diagnostics of multihelix vortex breakdown

    Article • Doklady Physics, November 2010, Pleiades Publishing Ltd

    Professor Valery L. Okulov

  18. Validation of mathematical models for predicting the swirling flow and the vortex rope in a Francis turbine operated at partial discharge

    Article • IOP Conference Series Earth and Environmental Science, August 2010, Institute of Physics Publishing

    Professor Valery L. Okulov

  19. Maximum efficiency of wind turbine rotors using Joukowsky and Betz approaches

    Article • Journal of Fluid Mechanics, April 2010, Cambridge University Press

    Professor Valery L. Okulov

  20. Vortex Precession in a Gas-Liquid Flow

    Article • Heat Transfer Research, January 2010, Begell House

    Professor Valery L. Okulov

  21. Applications of 2D helical vortex dynamics

    Article • Theoretical and Computational Fluid Dynamics, July 2009, Springer Science + Business Media

    Professor Valery L. Okulov

  22. Chaotic advection and separatrix branching in the Lagrangian diagnostics of flows

    Article • Doklady Physics, March 2009, Pleiades Publishing Ltd

    Professor Valery L. Okulov

  23. Helical structure of longitudinal vortices embedded in turbulent wall-bounded flow

    Article • Journal of Fluid Mechanics, January 2009, Cambridge University Press

    Professor Valery L. Okulov

  24. Applications of 2D helical vortex dynamics

    Article • January 2009, Springer Science + Business Media

    Professor Valery L. Okulov

  25. Refined Betz limit for rotors with a finite number of blades

    Article • Wind Energy, July 2008, Wiley

    Professor Valery L. Okulov

  26. An ideal wind turbine with a finite number of blades

    Article • Doklady Physics, June 2008, Pleiades Publishing Ltd

    Professor Valery L. Okulov

  27. Optimum operating regimes for the ideal wind turbine

    Article • Journal of Physics Conference Series, July 2007, Institute of Physics Publishing

    Professor Valery L. Okulov

  28. Optical diagnostics of intermittent flows

    Article • Technical Physics, May 2007, Pleiades Publishing Ltd

    Professor Valery L. Okulov

  29. Stability of helical tip vortices in a rotor far wake

    Article • Journal of Fluid Mechanics, March 2007, Cambridge University Press

    Professor Valery L. Okulov

  30. Modeling of the Far Wake behind a Wind Turbine

    Article • January 2007, Springer Science + Business Media

    Professor Valery L. Okulov

  31. Stability of the Tip Vortices in the Far Wake behind a Wind Turbine

    Article • January 2007, Springer Science + Business Media

    Professor Valery L. Okulov

  32. Vortex triplet

    Article • Doklady Physics, July 2006, Pleiades Publishing Ltd

    Professor Valery L. Okulov

  33. Simulation of Flow Structure in the Suction Pipe of a Hydroturbine by Integral Characteristics

    Article • Heat Transfer Research, January 2006, Begell House

    Professor Valery L. Okulov

  34. Vortex scenario and bubble generation in a cylindrical cavity with rotating top and bottom

    Article • European Journal of Mechanics - B/Fluids, March 2005, Elsevier

    Professor Valery L. Okulov

  35. The velocity field induced by a helical vortex tube

    Article • Physics of Fluids, January 2005, American Institute of Physics

    Professor Valery L. Okulov

  36. On the stability of multiple helical vortices

    Article • Journal of Fluid Mechanics, December 2004, Cambridge University Press

    Professor Valery L. Okulov

  37. Instability of a vortex wake behind wind turbines

    Article • Doklady Physics, December 2004, Pleiades Publishing Ltd

    Professor Valery L. Okulov

  38. Helical dipole

    Article • Doklady Physics, November 2004, Pleiades Publishing Ltd

    Professor Valery L. Okulov

  39. Instability of an equilibrium circular configuration of helical vortices

    Article • Technical Physics Letters, December 2002, Pleiades Publishing Ltd

    Professor Valery L. Okulov

  40. The effect of decreased mass transfer in twisted flows

    Article • Technical Physics Letters, September 2001, Pleiades Publishing Ltd

    Professor Valery L. Okulov

  41. Helical vortices in swirl flow

    Article • Journal of Fluid Mechanics, March 1999, Cambridge University Press

    Professor Valery L. Okulov, Sergey Shtork

  42. Self-induced motion and asymptotic expansion of the velocity field in the vicinity of a helical vortex filament

    Article • Physics of Fluids, March 1998, American Institute of Physics

    Professor Valery L. Okulov

  43. Self-Induced Motion of Helical Vortices

    Article • January 1998, Springer Science + Business Media

    Professor Valery L. Okulov

  44. Theory of Helical Vortices

    Article • January 1998, Springer Science + Business Media

    Professor Valery L. Okulov

  45. Calculation of the Ranque effect in the vortex tube

    Article • January 1994, Springer Science + Business Media

    Professor Valery L. Okulov

  46. Gas burning in a spiral flow

    Article • Combustion Explosion and Shock Waves, September 1993, Springer Science + Business Media

    Professor Valery L. Okulov

  47. L-transition from right- to left-handed helical vortices

    Article • Springer Science + Business Media

    Professor Valery L. Okulov

  48. Triplet of Helical Vortices

    Article • Springer Science + Business Media

    Professor Valery L. Okulov

  49. Models of vortex structures

    Article • Springer Science + Business Media

    Professor Valery L. Okulov

  50. Dynamics of two-dimensional vortex structures

    Article • Springer Science + Business Media

    Professor Valery L. Okulov

  51. Equations and laws of vortex motion

    Article • Springer Science + Business Media

    Professor Valery L. Okulov

  52. Dynamics of vortex filaments

    Article • Springer Science + Business Media

    Professor Valery L. Okulov

  53. Stability and waves on columnar vortices

    Article • Springer Science + Business Media

    Professor Valery L. Okulov

  54. Experimental observation of concentrated vortices in vortex apparatus

    Article • Springer Science + Business Media

    Professor Valery L. Okulov

  55. Vortex filaments

    Article • Springer Science + Business Media

    Professor Valery L. Okulov