21st Congress of International Council of the Aeronautical Sciences, Melbourne, Australia, 13-18 September, 1998
Paper ICAS-98-2.6.2

PROPELLER SLIPSTREAM COMPUTATIONAL METHODS

Wang D., Eliasson P., Meijer S., Lindblad I.
The Aeronautical Research Institute, Sweden

Keywords: propeller slipstream, computational methods

The paper presents unsteady Euler computations through non-matching and sliding-zone interface for three-dimensional problems. An interpolation scheme together with an efficient search algorithm is used at the interface to find the interpolation weights. The accuracy of the approach will be demonstrated numerically by propeller results at typical cruise conditions for a propeller driven aircraft. Slipstream field analysis of a propeller-wing combination will be presented in the paper. The potential of using the actuator disc model as an alternative to detailed time accurate propeller calculations will be discussed. The investigation reveals the propeller slipstream features and the character of different propeller computational methods.

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