| 摘要 |
PURPOSE:To vary a model for wind tunnel test to an optional testing attitude and to prevent a turbulent flow, a vortex flow, etc. in wind tunnel flowing air by providing a dynamometer, to which the model for wind tnnel test is attached, in a liquid tank installed under the floor of a wind tunnel. CONSTITUTION:An open hole 10A in the upper end of a liquid tank 10 is fitted and fixed to an aperture 11 of a wind tunnel floor 1, and a cradle truck provided with casters and leg screws contacting the floor is provided under a tank bottom part 10C. A model 14 for wind tunnel test is attached onto a dynamometer 12 placed in the liquid tank 10, and a dynamometer movable supporting device 20 supports the dynamometer 12 in the liquid tank so that the model 14 can be moved to an optional wind tunnel testing attitude. An ascending and descending base 22 of the supporting device 20 is moved vertically by the screwing action due to rotation of four vertical supporting threaded shafts 21, and a base 25 moving in the longitudinal direction is moved forward and backward along the axial line of the wind tunnel. An inclining base 27 is supported pivotally in the front end part of the moving base 25 so that base 27 can be inclined with a revolving shaft 26 as a fulcrum, and a turntable 29 is supported on the inclining base 27. |
