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 ?
Reassemble the baffles and the rear cap on the bolt, press them together and then slide the whole assembly into the shroud.
Caption: The six baffles within the ISB are machined from stainless steel.
To overcome the above-mentioned drawbacks of the conventional segmental baffle, a number of different improved structures were proposed for the purposes of higher heat transfer coefficient, low possibility of tube vibration, reduced fouling factor and reduced pressure drop.
SONEX PLANO Absorbers feature factory-cut, T-slots along the top of baffle lengths.
Nevertheless, we intended to obtain the results at two different temperatures to study the effect of incorporation of baffles and the impeller speed at these two temperatures to better demonstrate the impact of these factors compared to the temperature effect on the polymer properties.
Installation of baffles can improve the efficiency of the basin in terms of settling.
Siemon has introduced SidePOD and Baffle solution designed to support side-to-side ventilated active equipment and end of row (EoR) configurations in data center applications.
The first baffle off the muzzle is stainless, so as to stand up to the shock front of gases and particles.
The baffles were set at angles between 40 and 60 degrees to maximize their impact on the exhaust and at the same time to withstand the jet from an aircraft turbine.
The patented reactor design incorporates three wall-mounted baffles. The baffles not only boost reactor mixing efficiency and heat transfer, but also improve cleanability and free up room for additional nozzles and analytical instruments.
In a later study, Ozcan-Taskin and Wei (2003) observed that solids are drawn down in different ways depending on the impeller pumping mode, submergence, and number of baffles. They worked with a pitched blade turbine (PBT) in the upand down-pumping modes and the LE-20 impeller in the uppumping mode.