AN OPTIMIZED AERODYNAMIC PROFILE FOR A TURBINE BLADE, IN PARTICULAR FOR A ROTARY WHEEL OF THE THIRD STAGE OF A TURBINE

An aerodynamic airfoil profile for a blade of a turbine, which, when cold and in a non-coated state, is substantially identical to a nominal profile determined by Cartesian coordinates X,Y,Z' in which the coordinate Z' is the quotient D/H, where D is the distance of the point under conside...

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Hauptverfasser: MARCHE, PIERRE, GUIMBARD, JEAN-MICHEL, MARTET, RENAUD, BLEUZEN, JEAN
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GUIMBARD, JEAN-MICHEL
MARTET, RENAUD
BLEUZEN, JEAN
description An aerodynamic airfoil profile for a blade of a turbine, which, when cold and in a non-coated state, is substantially identical to a nominal profile determined by Cartesian coordinates X,Y,Z' in which the coordinate Z' is the quotient D/H, where D is the distance of the point under consideration from a first reference X,Y plane situated at the base of the nominal profile, and H is the height of the profile measured from the first reference plane that is the intersection of the stacking axis of a set of blades and the axisymmetric surface of a hub, out to a second reference plane that is the intersection of the stacking axis with the axisymmetric surface of the casing, the measurements D and H being taken radially relative to the axis of the turbine, while the coordinate X is measured in the axial direction of the turbine. Un profil aérodynamique pour une pale dune turbomachine qui, lorsquil est froid et dans un état non revêtu, est essentiellement identique à un profil nominal déterminé par les coordonnées cartésiennes X,Y,Z', dans lesquelles la coordonnée Z' est le quotient D/H, où D est la distance du point considéré à partir dun premier plan de référence X,Y situé à la base du profil nominal, et H est la hauteur du profil mesuré à partir du premier plan de référence qui est lintersection de laxe dempilement dun ensemble de pales et de la surface asymétrique dun moyeu, hors dun second plan de référence qui est lintersection de laxe dempilement avec la surface asymétrique du boîtier, les mesures D et H étant prises radialement par rapport à laxe de la turbine, alors que la coordonnée X est mesurée dans la direction axiale de la turbine.
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Un profil aérodynamique pour une pale dune turbomachine qui, lorsquil est froid et dans un état non revêtu, est essentiellement identique à un profil nominal déterminé par les coordonnées cartésiennes X,Y,Z', dans lesquelles la coordonnée Z' est le quotient D/H, où D est la distance du point considéré à partir dun premier plan de référence X,Y situé à la base du profil nominal, et H est la hauteur du profil mesuré à partir du premier plan de référence qui est lintersection de laxe dempilement dun ensemble de pales et de la surface asymétrique dun moyeu, hors dun second plan de référence qui est lintersection de laxe dempilement avec la surface asymétrique du boîtier, les mesures D et H étant prises radialement par rapport à laxe de la turbine, alors que la coordonnée X est mesurée dans la direction axiale de la turbine.</abstract><oa>free_for_read</oa></addata></record>
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subjects BLASTING
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
WEAPONS
title AN OPTIMIZED AERODYNAMIC PROFILE FOR A TURBINE BLADE, IN PARTICULAR FOR A ROTARY WHEEL OF THE THIRD STAGE OF A TURBINE
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