NDLI: Simultaneous Measurements of Velocity and Fluctuating Static-Pressure in a Circular Jet

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Hiramoto, Riho Toyoda, Kuniaki Mori, Hayato
Copyright Year	2003
Abstract	Velocity and fluctuating static-pressure were measured simultaneously in a circular jet in order to discuss the pressure transport of turbulent energy and the generation mechanism of aerodynamic sound in relation to vortical structure. A combined sensor, which consists of X-type hot-wire and pressure probe, was used for the simultaneous measurements. The air jet was issued from a sharp-edged circular orifice under the excitation at the interaction mode so that velocity and fluctuating static-pressure can be determined in space and time domains by using phase-average technique. The results suggest that the simultaneous measurements with the phase-average technique give us useful information to reveal the turbulent shear flow phenomena. In particular, the pressure transport is closely related to vortical structure, and intense sound sources are caused by the vortex merging and by the acceleration of vortices during vortex pairing.
Sponsorship	Fluids Engineering Division
Starting Page	153
Ending Page	158
Page Count	6
File Format	PDF
ISBN	0791836975
DOI	10.1115/FEDSM2003-45612
e-ISBN	0791836738
Volume Number	Volume 2: Symposia, Parts A, B, and C
Conference Proceedings	ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference
Language	English
Publisher Date	2003-07-06
Publisher Place	Honolulu, Hawaii, USA
Access Restriction	Subscribed
Subject Keyword	Turbulence Vortices Spacetime Air jets Shear turbulence Aerodynamic noise Excitation Sensors Wire Pressure Probes
Content Type	Text
Resource Type	Article

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