All Questions
Tagged with shock-waves pressure
15 questions
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Does anyone know of published data on Mach interactions with various asymmetrical toroids?
I was looking for any lab conducted tests, or computer models of Mach reflections off of different toroids. How would shock waves propagate through asymmetrical 180° ring toroids, what kind of ...
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In nuclear weapons, why does levitating a pit improve compression?
Levitated pits were introduced after after solid pits. In this design the tamper is separated from the fissile with an airgap. From the Nuclear Weapon Archive:
The original Fat Man pit design used a ...
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How much do tunnels extend blast waves from explosives?
As was discussed in the comments, I've crossposted this question to here, and am cross-linking them: https://worldbuilding.stackexchange.com/questions/234669/how-much-do-tunnels-extend-blast-waves-...
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With blast injuries, how much of the damage is from rapid decompression? [closed]
If a person or creature suffers a high explosive or low explosive blast, how much of their injuries will be due to the sudden decompression immediately after the shockwave?
Sudden decompression can ...
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The pressure fluctuations in an incompressible flow
I am reading the article by Zu and He (Phase-field-based lattice Boltzmann model for incompressible binary fluid systems with density and viscosity contrasts, Physical review E, 2013). There the ...
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Is it possible to create a shockwave gun (Like in Minority Report) [closed]
I love the gun in Minority Report. It seems to send a shockwave that can throw people and objects back. The gun has a rotating mechanism that triggers the action and loads a charge.
Here's it in ...
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What Are The Physics and Air Pressure Effects of Extremely Large Bells
How would one go about figuring out the physical properties of when a bell is hit.
Can I parameterize the diameter of the bell, its height, and the kinetic force of the knock to get the volume in ...
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Minimum speed for a mantis shrimp punch to create cavitation?
When a mantis shrimp punches it creates cavitation, because of the speed it creates sudden changes in the water.
I want to know how slow can a mantis shrimp punch and still make cavitation?
Notes:
...
user239759
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How do we get supersonic bullets?
I recently answered a question on the WorldBuilding forum about grenades and bullets. One of the things that came up was that I argued smokeless powder in a rifle round could detonate, but was ...
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Physical reasoning behind hearing a single shock
When an object is flying in the air at a mach number ($M$) greater than 1, a shock wave is continuously produced and the mach cone makes a particular angle, $\theta_M$, with the ground (or normal). An ...
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Shock waves at $M = 1$ and $M > 1$
When a wave moves faster than the local speed of sound ($c_s$) in a fluid, there is a shock wave since the fluid is unable to respond to the moving wave. Even if velocity ($v$) is constant, if ...
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Sonic Boom in Aircraft and Spacecraft
I would like to know why aircraft, and spacecraft produce a double sonic boom on breaking the sound barrier.
A while ago, I thought I got it, as there’s a start and finish point to every vehicle.
...
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Can a sonic boom put out a fire?
Since a sonic boom is just a collection of pressure waves combined into one massive pressure wave, would the low pressure zone behind it be enough to put out a large fire?
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What is the loudest possible sound?
For a long time, Wikipedia has said that the loudest possible sound is 191 dB SPL, as this corresponds to 1 atmosphere of pressure peak-to-peak, and anything above this would be clipped at vacuum on ...
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Pressure Change in Supersonic Wind Tunnel [closed]
As far as I know, the total pressure changes across a shock wave. How is this possible if you are in the atmosphere and atmospheric pressure isn't changing? Is energy lost due to entropy in ...
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