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A blast wave travels faster than the speed of sound, and the passage of the shock wave usually lasts only a few milliseconds. Like other types of explosions, a blast wave can also cause damage to things and people by the blast wind, debris, and fires. The original explosion will send out fragments that travel very fast.
An idealized shock tube. The plot shows different waves which are formed in the tube once the diaphragm is ruptured. A shock tube is an instrument used to replicate and direct blast waves at a sensor or model in order to simulate explosions and their effects, usually on a smaller scale. Shock tubes (and related impulse facilities such as shock ...
This is caused by the nonlinear behavior of shock waves. When the blast wave from an air burst reaches the ground it is reflected. Below a certain reflection angle, the reflected wave and the direct wave merge and form a reinforced horizontal wave, known as the '"Mach stem" and is a form of constructive interference.
Wave forms, scale and model laws. Jangle HE 5-10 Jangle 25 Aug 1951 - 9 Sept 1951 Nevada Test Site, Area 5 United States 2,560 6 TNT, Pentolite Surface -1 to -3 Base surge and cratering phenomena studies, ground activity differences with pentolite. Dugway Underground Explosion Test Program 5 May 1951 - 13 Nov 1951
Taylor–von Neumann–Sedov blast wave (or sometimes referred to as Sedov–von Neumann–Taylor blast wave) refers to a blast wave induced by a strong explosion.The blast wave was described by a self-similar solution independently by G. I. Taylor, John von Neumann and Leonid Sedov during World War II.
This is due to offsetting errors in the simplified model. Ignoring rarefaction waves in the detonation gases causes the calculated velocity to be too high; the assumption of an initial constant gas density rather than the actual one of the gases being densest next the accelerated layer causes the value to be low, cancelling each other out.
CNN cannot geolocate the images from social media but has verified they were published on Tuesday, the same day as the explosions. At least one pager shown in the images was a Gold Apollo AR924 model.
The ZND detonation model is a one-dimensional model for the process of detonation of an explosive. It was proposed during World War II independently by Yakov Zeldovich, [1] John von Neumann, [2] and Werner Döring, [3] hence the name. This model admits finite-rate chemical reactions and thus the process of detonation consists of the following ...