baffle

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baffle

a plate or mechanical device designed to restrain or regulate the flow of a fluid, the emission of light or sound, or the distribution of sound, esp in a loudspeaker or microphone

Baffle

An opaque or translucent element used to diffuse or shield a surface from direct or unwanted light.

Baffle

 

an installation in the afterbay of an overflow dam that changes the direction of the flow and spreads the width of the water stream when only some of the spillway apertures in the dam are functioning. The basic purpose of a baffle is to ensure a fairly uniform distribution of the flow velocities and to reduce them on the downstream apron. A distinction is made between a ramp baffle (continuous or slotted), which is installed along the entire width of the water apron, and a baffle formed of piers, which is placed at an angle to the water stream.

baffle

[′baf·əl]
(electricity)
Device for deflecting oil or gas in a circuit breaker.
(electronics)
An auxiliary member in a gas tube used, for example, to control the flow of mercury particles or deionize the mercury following conduction.
(engineering)
A plate that regulates the flow of a fluid, as in a steam-boiler flue or a gasoline muffler.
(engineering acoustics)
A cabinet or partition used with a loudspeaker to reduce interaction between sound waves produced simultaneously by the two surfaces of the diaphragm.

baffle

1. A plate used to control the flow of a liquid.
2. An opaque or translucent plate used to shield a light source from direct view at certain angles; a light baffle.
3. A flat deflector or obstruction designed to reduce sound transmission.
4. A plate that retards and/or changes the direction of the flow of air, air-gas mixtures, or flue gases.

baffle

baffle
A fuel tank with baffle plates.
baffleclick for a larger image
baffleclick for a larger image
baffle
i. A series of partitions in a fuel tank to control the rapid flow of fuel and prevent its sloshing. These partitions have holes that allow the fuel to feed to the tank outlet, but they keep the fuel from surging enough to uncover the fuel outlet.
ii. A partition separating the upper portion of the tank that prevents oil pump cavitation as oil tends to rush to the top of the tank during deceleration periods. The baffle is fitted with a weighted swirl outlet control valve that is free to swing below the baffle. The valve closes when oil at the bottom of the tank rushes up when the aircraft decelerates.
iii. A sheet metal shield used to direct the flow of air between and around the cylinders of an air-cooled reciprocating engine.
iv. A partial partition in the pitot system to trap moisture and any solid matter as well as to reduce turbulence.
References in periodicals archive ?
One word of caution when selecting a roofer to install the new standing seam roof: Make sure that the roofer offers an effective externally baffled ridge venting system; not many standing seam roofers utilize one.
The general empirical equations of time averaged Nusselt number and time averaged pressure drop were derived as a function of Reynolds number corresponding to the baffle geometry parameters of pitch to diameter ratio H/D, baffle orientation angle b, ratio of smooth to baffled cross-section area and ratio of tube length to baffle spacing were derived for transient flow conditions.
The baffled design reduces the cleaning and validation time needed to comply with cGMP standards in several ways.
WE have had Hawkeye and the Hot-spot - but the latest technology to enhance the armchair sports fans' viewing has left me baffled - Mole Cam.
Judge Farmer told the jury: "You may have been as baffled and horrified as I was to discover you couldn't see the girl's face, as baffled and horrified as I was to find she was being interviewed about allegations of this sort by a man and by the fact that his face was completely blocked out of the picture.
Locals were left baffled when the furniture appeared on rocks in shallow water at Loch Airighna Lic on Lewis.
A VICTORIAN boot found lodged up a tree has baffled historians at Blenheim Palace.
Kuzmanic and Ljubicic (2001) reported that in a fully baffled tank, the intensity of turbulence is primarily responsible for the dispersion of floating solids.
I was baffled more than anything as to where it has all come from and why.
This seemed to spark Baffled into life as she picked up well and it was hard to call the result despite pounds 7,859 being matched at 1.
2006), I was baffled by her omission of the corps de ballet.
The author explains that scientists have been baffled by many aspects of these diseases because they're like infections and yet aren't caused by microbes.