AERODYNAMICAL POWER SOUND SOURCE EXPLORATION SYSTEM AND AERODYNAMICAL POWER SOUND SOURCE EXPLORATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide an aerodynamical sound source exploration system and an aerodynamical sound source exploration method which applies a PIV technique to an aerodynamical sound source countermeasure solution, and analyzes a sound source distribution of aerodynamical sound.;SOLUTION: The aerodynamical power sound source exploration system 10 consists of a smoke generating device 11, a sheet lighting device 12, a CCD camera 13 and a sound source analysis system 20, which includes PC 21 and a display 22. The sound source analysis system 20 uses a formula in which a formula of vortex sound of Howe and a compact Green function suitable for an object form, thereby analyzing a distribution of double polar sound of aerodynamical power sound from distribution of measured velocity vector.;COPYRIGHT: (C)2004,JPO