Detonation Definition and 19 Threads

Hello everyone, I am Abheer and I am a high school student. Few days back I saw an article about RDEs (Rotating Detonation Engines). The article said it is the future of aviation propulsion. I want to ask, is it really so that RDEs are future or the low/high bypass turbofan engines will continue...

I was thinking the other day, would it be possible to have microwaves heat the air fuel mixture to activation point and have the microwaves bounce back off the gas to be picked up by a computer that generates a 3d image. this 3d image could be used to heat the gas up in a uniform way so as to...

Please Suggest me some good books(introductory level) to understand detonation in engines.

Can someone help me to calculate the approximate impact on the Earth (as in a mining explosion), of 1 ton of dynamite. And also the equivalent impact of say a 1 ton rock dropped from 10 meters. Trying to estimate this for writing purposes, I very roughly got: Impact of 1 ton of dynamite, Work...

Just trying to understand how efficient RDE's are thermodynamically based on a 2016 paper from Bulat and Volkov titled "Detonation Jet Engine. Part 1 – Thermodynamic Cycle" and a 2013 paper by Nordeen et. al. titled "Thermodynamic Model of a Rotating Detonation Engine": Based on these papers...

I just watched the documentary Trinity and Beyond where it showed footages of nuclear detonations. There were over 300 such tests between 1945 and 1970. Why didn't any accidental nuclear detonations occur in those tests. What kind of triggering device did they use to make the nukes explode? I...

I admit before even posting, that i have no formal qualifications at all regarding any form of Science.. I am just a person with a very keen interest in various fields and eager to learn the answers! Im aware that this question might have been answered elsewhere, but my Question is Simple: Can...

I'm a little rusty on my physics, so here's the hypothetical: Put HMX prima cord in a long pipeline , say 1000m. If you detonate the prima cord and the pipe has a 3" ID, would the blast wave outrun the HMX detonation velocity of 9100 m/s. If you reduced the ID of the pipe, is there a certain...

Suppose there are two explosive charges in a single casing. The detonation of the charges can be initiated either simultaneously (A) or in succession some milliseconds apart (B). Does A differ from B in respect to the overall explosive force? Can the shock front in B carry more energy in a...

News reports have it at 4.9 magnitude and a depth of 1 kilometer The USGS appears to have it at 5.1 and the depth is not currently known accurately. http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/usc000f5t0.php#details...

Hi, I'm new here and I'm really hoping that someone could answer my question. i am trying to design a PDE but the problem about this is that the temperature caused by detonation (3461 K) is so high that it is really difficult to find a suitable material for the detonation chamber and thermal...

I´m wondering if it´s possible to suppress a detonation by the use of a big vacuum chamber that "opens" as the detonation starts. I mean, if the vacuum will disturb the expansion of the shock waves by "absorbing" the waves or something like this.

What happen if we decided to use and detonated a nuclear bomb in any volcanoes?

I've seen many threads similar, but none addressing this particular theory. I don't know when I came up with this, but I know that a friend of mine, and at least one member of XKCD forums did as well. So... The idea is that there are one or more universes outside our own, though pretty much...

Is it possible to detonate or to ignite a fuel and air mixture using lasers, or a laser pulse, any type of laser, CO2 or other wise ? or is there any possible way of using Lasers for the propulsion of an aircraft, i am already aware of several methods, but they do not include ignite fuel, any...

I guess this is more a geophysics question, but I was wondering about what the geophysical and atmospheric consequences would be of a single, massive energy release at a single location, caused by the simultaneous detonation of several large thermonuclear bombs or an antimatter explosion...

I think it was during the last NH Democratic debate that the moderator stated that there is a 30-50% chance that a terrorist will successfully detonate a nuclear device in a US city over the next ten years. Did I hear that correctly?

What would be the reprocussions of detonating a nuclear device in outer space? Would nothing happen except the explosion... would it create a black hole? Would it become a ball of energy self contained in its own atmosphere?

What Would Be The Most Appropriate Means For Evaluating The Performance Of A 'pulsed Detonation' Engine Using Hydrogen As A Fuel And Atmospheric Air?