sound barrier


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sound barrier:

see aerodynamicsaerodynamics,
study of gases in motion. As the principal application of aerodynamics is the design of aircraft, air is the gas with which the science is most concerned. Although aerodynamics is primarily concerned with flight, its principles are also used in designing automobile
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.

Sound barrier

Any solid obstacle that is relatively opaque to sound that blocks the line of sight between a sound source and the point of reception of the sound.

sound barrier

[′sau̇nd ‚bar·ē·ər]
(aerospace engineering)

sound barrier

Any solid obstacle which is relatively opaque to sound that blocks the line of sight between a sound source and the point of reception of the sound.

sound barrier

A so-called barrier to flight encountered by an airplane designed for subsonic speeds when it reaches transonic speeds and meets the turbulence incident of diverse degrees of compressibility. An intense buffet and the loss of controls to a varying degree may also be experienced at this speed. Also called a transonic barrier.

sound barrier

a hypothetical barrier to flight at or above the speed of sound, when a sudden large increase in drag occurs
References in periodicals archive ?
In view of the above studies, in this paper, firstly the response of sound barrier subjected to train-induced impulsive wind pressure is simulated by using the finite element method.
We made more overtures for the sound barrier over the years, only to be met by what we consider to be a willing indifference,'' he continued.
Susannah Forkun, a Hearing Dogs for Deaf People representative, said: "The Sound Barrier Star Awards are a great way to highlight the hard of hearing's achievements.
The shock waves caused by approaching the sound barrier also proved stressful, leading to structural failures like the one that destroyed a British experimental plane, the de Havilland Swallow.
Luke was nominated for a Sound Barrier Star award by his mum Anne.
Fournier reckons to break the sound barrier after 37 seconds and reach a top speed of 1,113mph.
This spring, the agency contracted with renewable energy company Solarcentury to install two 150-foot-long solar panels in front of a highway sound barrier.
The British Museum of Transport in Coventry has created a simulator of ThrustSSC - the first car to break the sound barrier at more than 763mph six years' ago.
Reducing the weight of the typical sound barrier material increases the amount of noise that is transmitted to the vehicle interior.
By feeding their equations into a computer, Goriely and McMillen determined that the leading edge of the loop would break the sound barrier while still partially curled.
In addition, the acoustic effectiveness of a prototype sound barrier is reported.
Sahn & Ward prevented the New York State Department of Transportation from constructing a massive, 22-foot high sound barrier wall in front of its client's buildings along the north service road of the Long Island Expressway.