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 ?
The bolt is captured, so when it comes loose from the shroud it will still be holding the baffles onto the shaft.
The actual rifled barrel of the ISB extends only 10.6 inches in length, while the remaining 5.4 inches houses the six-piece, removable baffle stack.
The simulation results for 0.5 kg/s mass flow rate for existing and modified models (with 10[degrees], 15[degrees], 20[degrees] and 25[degrees] baffle cut) are obtained.
manufactures a broad range of attractive direct-apply, glue-up and suspended ceiling and wall panels, clouds, baffles and other acoustical products for commercial and industrial applications.
Figure 2a and b shows monomer conversion as a function of reaction time at different impeller speeds of 20, 100, 250, and 350 rpm, with and without baffles at the isothermal reactor temperature of (a) 50[degrees]C and (b) 60[degrees]C.
The results and discussion are presented in four parts; the first part discusses the effect of the vertical baffle installed at the bottom of the basin, the second part deals with the angle of the baffle and the last two parts describes the effects of Froude number and flow depth on sediment removal efficiency.
The reversible baffles can be installed in either orientation for proper airflow from cold to hot aisles.
They used a single partial baffle 0.2 T wide, immersed from the top of the liquid to a depth of 0.3 T, an axial impeller of 0.6 T diameter, and the impeller off bottom clearance in the range of (T/9 - 3T/9) as the optimum configuration.
A convertible pantyliner including a liner, a baffle and an absorbent core in between the liner and baffle was patented.