PROBLEM TO BE SOLVED: To provide a method of wind tunnel test of airfoil which enables more accurate measurement of the aerodynamic properties of a 2-dimensional airfoil cross section.;SOLUTION: The method of wind tunnel test of airfoil includes: a step for preparing a wind tunnel test apparatus 1 provided with two walls 2 constituting a wind tunnel passage, supporting members 4 provided so as not to interfere with the walls 2 while penetrating the walls 2, and load measuring units 3 which hold the supporting members 4; a step for uniting the supporting members 4 to ends of an airfoil model 11 being a measuring object; a step for generating a flow of a fluid in the wind tunnel passage; and a step for measuring loads applied to the airfoil model 11 by the load measuring units 3. Thin film members 5 are stuck to the ends of the airfoil model 11 so that a part of each member protrudes from an edge along an outer circumference over the whole circumference. The thin film members 5 have a strength capable of enduring a pressure of the fluid, are made of materials which do not restrict the movement of the airfoil model 11 even if the members come in touch with the walls 2, and are provided so as to block the gap d1 between the ends and the walls 2.;COPYRIGHT: (C)2011,JPO&INPIT
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