국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Study of Turbulence Spectra Measurement Technique Using an LDV
저자	Mitsuo GOMI, Katsumi TAKEDA, Hiroshi KOBAYASHI
Keyword	LDV; Turbulence spectra; Aerodynamic noise; Karman vortex
URL	http://send.nal.go.jp/send/jpn/dlpdf.php3/naltr0001346.pdf?id=NALTR0001346
보고서번호	NAL TR-1346
발행년도	1998.1
출처	NAL (National Aerospace Laboratory of Japan)
ABSTRACT	A nondisturbance technique of measuring turbulent velocity spectra was studied to clarify the source of aerodynamic noise. In an anechoic wind tunnel, the continuous spectra of turbulent velocity in the wake of a cylinder of 10 mm diameter was measured over a range of mean velocity 30~50 m/s using an optical fiber-linked LDV probe of 160 mm focal length. Accurate turbulent velocity.