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Numerical simulation of downburst winds
Journal of Wind Engineering and Industrial Aerodynamics, 2009The wind field of an intense idealised downburst wind storm has been studied using an axisymmetric, dry, non-hydrostatic numerical sub-cloud model. The downburst driving processes of evaporation and melting have been paramaterized by an imposed cooling source that triggers and sustains a downdraft.
David F Fletcher
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An empirical model of a downburst
Engineering Structures, 2000Abstract A “downburst” was defined as a strong downdraft which induces an outburst of damaging winds on or near the ground. Such events normally occur during thunderstorms. It has been well documented that downbursts cause frequent failures of high voltage electricity transmission towers in Australia, and several other countries.
J.D Holmes, S.E Oliver
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Journal of Wind Engineering and Industrial Aerodynamics, 2002
C.W Letchford, M.T Chay
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C.W Letchford, M.T Chay
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Optimal paths through downbursts
Guidance, Navigation and Control Conference, 1989The control of an aircraft's takeoff path through a downburst is presently formulated as a dynamic optimization problem with minimum-altitude constraint and two different performance measures; a landing path through a downburst is also discussed. Paths are determined which, in addition to maximizing an airspeed/altitude combination immediately after ...
Yiyuan Zhao, A. E. Bryson
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