High area ratio turbine vane

摘要

A vane (34) for a turbine engine comprises an airfoil section (60), an inner platform (52) and an outer platform (56). The airfoil section comprises pressure and suction surfaces extending from a leading edge (62) to a trailing edge (64). The inner platform is attached to the airfoil section along an inner flow boundary (54), where the inner flow boundary extends from an upstream inlet region (66) of the vane to a downstream outlet region (68) of the vane. The outer platform is attached to the airfoil section along an outer flow boundary (58), where the outer flow boundary extends from the inlet region to the outlet region. An area ratio of the outlet region to the inlet region is greater than 2.4.