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.
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e menacing snarl of the Ferrari soundtrack echoed through the glens and as a breeze threatened to whip up a mini storm we deployed the new wind deector which cuts air ow in the cabin by a third and also reduces aerodynamic noise.
The menacing snarl of the Ferrari soundtrack echoed through the glens and as a breeze threatened to whip up a mini storm we deployed the new wind deflector which cuts air flow in the cabin by a third and also reduces aerodynamic noise.
Aerodynamic noise arises from the interaction of the airfoils or blades with the wind.
Generally speaking, centrifugal fan noise is composed of electromagnetic noise, mechanical noise and aerodynamic noise, among which aerodynamic noise is often a prominent contributor including rotating noise and vortex noise [5, 6, 7], as illustrated in Figure 10.
This results in an appreciable reduction in aerodynamic noise in the cabin.A A
[8] conducted the reduction of aerodynamic noise radiating from a circular cylinder by the control of the PAs on the cylinder.
A new wind deflector which, when the top is dropped, cuts air flow inside the cabin by 30 per cent and also reduces aerodynamic noise.
Seal noise generation is estimated by models and found that the sound transmission from the exterior to the interior through side-glass windows and seals as the primary aerodynamic noise sources [8, 13].
Aerodynamic noise reduction is also one of the key issues in modern civil aircraft design in past several decades.
According to the source of the internal combustion engine, the noise can be divided into mechanical noise, combustion noise, and aerodynamic noise [2-4].
The most important source of aerodynamic noise of induction motors is the fan.