| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a wind tunnel which can measure exactly a pressure of an under surface of a vehicle inexpensively, while reducing time and effort concerning installation of a pressure measuring point. Ž<P>SOLUTION: The wind tunnel F which measures the pressure of air flow flowing under vehicle A floor is characterized by preparing the pressure measuring point 1A formed on nearly the same plane of a floor surface U of the wind tunnel F. The pressure measuring point 1A is an aperture part 1A formed on the floor surface U. The wind tunnel F is characterized by comprising a pressure gauge 3 which measures the pressure, a pressure transmission path 1C connecting the aperture part 1A and the pressure gauge 3. Furthermore, the pressure measuring point 1A comprises the aperture part 1A formed on the upper surface of plate like member 1 mounted on the floor surface U. The wind tunnel F is characterized comprising the pressure gauge 3 measuring the pressure, the pressure transmission path 2 connecting the aperture part 1A and the pressure gauge 3. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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