A New Actuator Disk Model for the TAU Code and Application to a Sailplaine with a Folding Engine

  • Axel Raichle
  • Stefan Melber-Wilkending
  • Jan Himisch
Part of the Notes on Numerical Fluid Mechanics and Multidisciplinary Design (NNFM) book series (NNFM, volume 96)


In this paper a new actuator disk is presented which is consistent with the classical model of momentum theory of a zero thickness surface which imposes a discontinous pressure jump to the flow. The topology of the grid maintains fluxes conservative through the disk. The load of the disk is calculated by time averaging the sectional load of a rotating blade. The sectional load is calculated with the blade element theory for a propeller of a sailplaine with a folding engine and the actuator disk is applied to investigate the effect of the jet to the elevator.


Pressure Jump Helicopter Rotor Blade Geometry Stream Density Blade Vortex Interaction 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • Axel Raichle
    • 1
  • Stefan Melber-Wilkending
    • 1
  • Jan Himisch
    • 1
  1. 1.German Aerospace Center (DLR)Institute of Aerodynamics and Flow TechnologyBraunschweigGermany

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