OPTIMAL UTILIZATION OF WIND ENERGY FOR DYNAMIC SOARING

Authors

  • Gottfried Sachs
  • Alexander Knoll
  • Klaus Lesch

Keywords:

Meteorology, Aerodynamics, Design

Abstract

Modern mathematical optimization procedures are applied for dynamic soaring flight. Thus, flight maneuvers can be determined where the energy extraction from non-uniform horizontal wind (wind shear) and its transfer to the sailplane is maximized. The minimum wind gradient necessary for continuously maintaining dynamic soaring flight is shown. Maximum lift-to­-drag ratio and wing load are key factors as regards minimum wind gradient level. In addition, it is shown what energy gain can be achieved when the wind gradient exceeds the minimum level considered.

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Issue

Vol. 15 No. 2 (1991)

Section

Articles

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