bow wave


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bow wave

[′bau̇ ‚wāv]
(fluid mechanics)
A shock wave occurring in front of a body, such as an airfoil, or apparently attached to the forward tip of the body.

bow shock wave

bow shock waveclick for a larger image
A shock wave that forms when the aircraft is flying at a speed faster than the speed of sound. A bow wave is a shock wave in front of a body, such as an airfoil, or is apparently attached to the forward tip of the body.

compression wave

compression waveclick for a larger image
A shock wave that forms on the surface of an airfoil moving through the air at supersonic speeds. The reverse phenomenon is an expansion wave. Also called bow wave. See also bow shock wave and expansion wave.
References in periodicals archive ?
Since the key issue of this paper is the composite scattering of ship and sea waves, only the ship bow wave [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] is considered.
As a supersonic aircraft speeds along, it pushes aside air molecules with great force and forms a shock wave, much like a boat creates a bow wave.
The second-best option is to ride off to the side of the lead boat, on what is called the bow wave.
A bow wave in this context is any action on the part of your enterprise that leads the way into a prospect's mind by delivering marketing messages via a wide variety of means.
Furthermore, as the design cuts through the water it does not push a visible bow wave, thus avoiding the drag hump conventional seaplanes encounter during acceleration.
We're facing an anticipated bow wave of retirements, meaning that well-run programs such as NAVSEA's Systems Engineering Development Program are more important than ever.
Although ABL's prime contractor has added additional personnel to the contract, the program is faced with a bow wave of uncompleted work from prior years.
It pushes the neutral air forward, almost like the bow wave off a ship," says Olson.
We saw the blue whales, and in addition to being entertained by them, we watched as dolphins rode the bow wave, bolting out of the water every so often, thrilling us with their every move.
At other times, the dolphin the bow wave of ships or boats.
On overcast days, fly fishers can entice between 50 and 100 takes on "Wogs" chugged and kersploosbed across the glassy surface: A black head suddenly appears in a bow wave behind the high-riding fly; you splurp the Wog and gasp as the head and jaws engulf it.
By pushing production schedules into the future, as you add more unrealistically priced programs, you create what the Pentagon calls the "investment bow wave.