aerodynamic noise

aerodynamic noise

[‚e·ro·dī′nam·ik ′nȯiz]
(acoustics)

aerodynamic noise

Noise resulting from the flow of air; often generated in an air-conditioning system when an airstream encounters protuberances, rough surfaces, and/or blunt edges.
Mentioned in ?
References in periodicals archive ?
The main reasons for noise in the subway are: Road intersects (embranchments switches), turning on rail, electric motors, electric equipment, signals, locomotives, stopping and also aerodynamic noise.
JAXA uses simulation technologies in a wide range of fields, including research into the fluidic, thermal, and structural characteristics of rocket engines and the aerodynamic noise of aircraft.
25 ( ANI ): Researchers have claimed to have found how exactly owls achieve the acoustic stealth to effectively eliminate the aerodynamic noise from their wings - allowing them to hunt and capture their prey in silence.
analysis techniques, a strategy for designing a monitor for intelligent industrial processing based on multi-agents, the effect of sunroofs and side windows on aerodynamic characteristics of a transit bus, aerodynamic noise characteristics for the control valve of a steam turbine, safety research for face recognition based on image features and digital watermarking, and a route selection mechanism for the mobility of nodes in mobile ad hoc networks.
For many reasons, including the repetitive aerodynamic noise he dismisses, residents of those areas will have an opinion to express.
However, Emerson's Noise Attenuation Technology is available on EZH Series regulators to reduce aerodynamic noise generated by internal turbulence created by high pressure drop ratios.
Aerodynamic noise accounts for 45% of all noise, which is the main source (ZHI, 1985) of making noise.
For the aerodynamic noise level calculation by using expression (1), the user has to input the external diameter of the fan and the width of the blades.
New to this edition are: an expanded chapter of digital positioners, more coverage of DCS Systems and smart positioners, a new hydrodynamic and cavitation noise estimate, updated standards related to the latest IEC versions, a new chapter on seat materials and leakage, updated Aerodynamic Noise equations, and updated standards listings.
A similar approach was used to separate the tone and broadband noise in a fan noise study, The 4th, 8th, and 12th harmonics were left since they were correlated to an aerodynamic noise source on the fan (Kading 2006 and Kading et.