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Kaufmann vortex

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(Redirected from Kaufmann (Scully) vortex) Mathematical model for a vortex that takes viscosity into account

The Kaufmann vortex, also known as the Scully model, is a mathematical model for a vortex taking account of viscosity. It uses an algebraic velocity profile. This vortex is not a solution of the Navier–Stokes equations.

Kaufmann and Scully's model for the velocity in the Θ direction is:

V Θ   ( r ) = Γ 2 π r r c 2 + r 2 {\displaystyle V_{\Theta }\ (r)={\frac {\Gamma }{2\pi }}{\frac {r}{r_{c}^{2}+r^{2}}}}

The model was suggested by W. Kaufmann in 1962, and later by Scully and Sullivan in 1972 at the Massachusetts Institute of Technology.

See also

References

  1. Mahendra J. Bhagwat and J. Gordon Leishman, Generalized Viscous Vortex Model for Application to Free-Vortex Wake and Aeroacoustic Calculations Archived 2011-06-16 at the Wayback Machine, University of Maryland
  2. Tamás Gausz, Budapest University of Technology and Economics. Blade vortex interaction problem at helicopter rotors Archived 2011-07-21 at the Wayback Machine, 12th International Conference on Fluid Flow Technologies, 2003
  3. Kaufmann, W. (1962). "Über die Ausbreitung kreiszylindrischer Wirbel in zähen (viskosen) Flüssigkeiten". Ingenieur-Archiv (in German). 31 (1): 1–9. Bibcode:1962AAM....31....1K. doi:10.1007/BF00538235. ISSN 0020-1154. S2CID 121128702.
  4. Scully, M. P., and Sullivan, J. P., “Helicopter Rotor Wake Geometry and Airloads and Development of Laser Doppler Velocimeter for Use in Helicopter Rotor Wakes,” Massachusetts Institute of Technology Aerophysics Laboratory Technical Report 183, MIT DSR No. 73032, August 1972


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