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Écoulement aérodynamique

Écoulement aérodynamique. R. R z. Vent relatif. i. R x. R z. R x. Traînée. Portance. i. i. 0. 0. Angle d’incidence. Résultante aérodynamique. Profil. Polaire. 0. R x. R z. Traînée. Portance. 0. 0. i. i. 5. 4. R z. 1. 4. 5. 3. 1 - portance nulle 2 - Traînée mini

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Écoulement aérodynamique

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  1. Écoulement aérodynamique R Rz Ventrelatif i Rx Rz Rx Traînée Portance i i 0 0 Angled’incidence Résultanteaérodynamique Profil

  2. Polaire 0 Rx Rz Traînée Portance 0 0 i i 5 4 Rz 1 4 5 3 1 - portance nulle 2 - Traînée mini 3 - Rz/Rx maxi 4 - Portance maxi 5 - Décrochage 2 2 Rx 1

  3. Polaire 2 2 Rz 1 1 Rx = r.S.V .Cx Rz = r.S.V .Cz 2 2 Cz Rx 0 Cx Polaire d ’un profil . . .Polaire d ’un avion Rz = f (Rx) équivalent à : Cz = f (Cx)

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