WIND TURBINE HAVING A CIRCULAR OR CONICAL TOWER STRUCTURE WITH PASSIVE FLOW CONTROL MEANS AND USE OF SUCH CIRCULAR TOWER STRUCTURE

A wind turbine tower structure with passive flow control means for suppressing vortex induced vibrations in said tower structure is described. The said passive flow control means comprises vortex generator units which each comprises a fin and a base through which the fin is attached to the surface o...

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Bibliographische Detailangaben
Hauptverfasser:	FRYDENDAL, Ib, GRABAU, Peter
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING BUILDING BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES FENCING FIXED CONSTRUCTIONS FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOWOF GASES OR LIQUIDS FLUID-PRESSURE ACTUATORS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MACHINES OR ENGINES FOR LIQUIDS MASTS MECHANICAL ENGINEERING OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PRODUCING MECHANICAL POWER SWIMMING OR SPLASH BATHS OR POOLS TENTS OR CANOPIES, IN GENERAL WEAPONS WIND MOTORS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	A wind turbine tower structure with passive flow control means for suppressing vortex induced vibrations in said tower structure is described. The said passive flow control means comprises vortex generator units which each comprises a fin and a base through which the fin is attached to the surface of the tower structure. The vortex generator will influence the boundary layer around the tower structure and thereby suppressing vortex induced vibrations. Each of said fins comprises a rectangular plate being ar- ranged substantially radially in relation to the tower structure and in a plane being sub-stantially perpendicular to a longitudinal axis through the tower structure. L'invention concerne également une structure de tour d'éolienne avec des moyens de commande de débit passif pour supprimer des vibrations induites par vortex dans ladite structure de tour. Ledit moyen de commande de débit passif comprend des unités de générateur de vortex qui comprennent chacune une ailette et une base à travers laquelle l'ailette est fixée à la surface de la structure de tour. Le générateur de vortex influence la couche limite autour de la structure de tour et supprime ainsi les vibrations induites par vortex. Chacune desdites ailettes comprend une plaque rectangulaire qui est disposée sensiblement radialement par rapport à la structure de la tour et dans un plan qui est sensiblement perpendiculaire à un axe longitudinal à travers la structure de la tour.