shock front


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shock front

[′shäk ‚frənt]
(physics)
The outer side of a shock wave whose pressure rises from zero up to its peak value. Also known as pressure front.

shock front

shock frontclick for a larger image
shock frontclick for a larger image
i. A shock wave regarded as the forward surface of a fluid region having characteristics different from those of the region ahead of the wave.
ii. The front side of a shock wave.
References in periodicals archive ?
The speed of shock fronts exceeds the linear wave propagation but is less than the speed of the Riemann wave [1,26,30].
We are mainly concerned with a fast shock front due to a strong nonlinear convection term induced by a strong vacuum, and the forms of D are, therefore, insignificant in the present investigation.
Nonetheless, the formation of a shock front also marks a limit on the amount of energy that can be pumped into a sound wave.
Dr Andy Breen, a solar-terrestrial physicist, said the shock front from the eruption was felt on Earth at 4am yesterday morning after being launched from the Sun about 11am the morning before.
At the time, theorists supposed that the matter in the supernova shock front was too thick for the gamma rays themselves to get out.
Scientists want to understand how the acceleration of electrons in very strong shocks with large 'Mach numbers' depends on the angle between the magnetic field and a vector at right angles to the shock front.
GERMAN legend Berti Vogts has emerged as the shock front runner to replace Dick Advocaat at Rangers.
However, according to the theoretical models, at the time of the reported observations (July through September) the matter in the expanding supernova shock front should still have been opaque to gamma rays.
It all hangs on the positive identification of the extra X-ray radiation as directly emerging from the supernova shock front, rather than from the relativistic jets or central black hole.
As the solar wind from the sun flows out beyond Pluto, it collides with the material between the stars, forming a shock front.