| 摘要 |
PROBLEM TO BE SOLVED: To provide a rectifying device which generates a large amount of eddy, prevents the central axial direction of the generated eddy from concentrating in one direction, and uses a resistance element with a low pressure loss. SOLUTION: This rectifying device is installed in a wind tunnel test device consisting of an air blower and uniformizes the flow velocity distribution in the channel. A plurality of resistance elements made of an octahedron are provided in the channel, and a support bar for supporting the resistance elements to the inner wall of the channel is provided thereto. The cross sectional area of the resistance element of the octahedron in the flow direction in the channel is set larger at the portion with a high flow velocity distribution in the channel than the portion with a low flow velocity distribution. The resistance element is supported to the support bar rotatably to the inner wall of the channel. COPYRIGHT: (C)2010,JPO&INPIT |
