Focused wave engine runs!

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Re: Focused wave engine runs!

Postby Viv » Tue Oct 12, 2004 8:19 pm

Bruno Ogorelec wrote:
Viv wrote:Dan Dare! sorry Bruno way before my time! you must be really old to remember him.


You missed a lot.


So what was it like growing up in the fortys then Bruno? I was a sixtys baby so I missed all this:-)

Viv
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Re: Focused wave engine runs!

Postby Bruno Ogorelec » Tue Oct 12, 2004 8:41 pm

I swung an ashtray at you, but you were too far and I missed. I was born in 1951 and read Dan Dare in the early 60s.
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Re: Focused wave engine runs!

Postby Tom » Tue Oct 12, 2004 10:01 pm

Bruno Ogorelec wrote:I swung an ashtray at you, but you were too far and I missed.


I wondered what the hell that clunk was against the side of my house earlier...

Tom
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Re: Focused wave engine runs!

Postby steve » Thu Oct 14, 2004 2:39 am

I tried to run the engine (unsucessfully) with a diferent augmentor today. It has a 47.5mm throat, is 178mm long, has a flare with a radius~8mm and has no taper. Would the augmentor generate enough back pressure to prevent the engine from sustaining (because it didn't)

Another problem was that I had to run it with the original fueling configuration because I couldn't find my new one (I think my dad may have thrown it out) this may have contributed to my inability to start the thing.
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Re: Focused wave engine runs!

Postby Bruno Ogorelec » Thu Oct 14, 2004 5:51 am

Steve, this is great! I love it. Since I love it, it must work, of course. :o)

More seriously, the layout should not generate any problems for the engine. I don't see how. Experimental data of other people (much wiser than I am in matters of pulsating combustion) also says that it should be OK. So, the problems should be somewhere else. That's what I think.
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Re: Focused wave engine runs!

Postby Suns » Wed Sep 22, 2010 2:14 pm

An video for a crude simulation from the software I´m making for this engine.

for a beginner, I´m thinking in building this design, it is better to try another one?
I think the properties of this design is good for a beginner.

http://www.youtube.com/watch?v=Ajc2RyOqo-M
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Re: Focused wave engine runs!

Postby zono » Fri Sep 24, 2010 10:38 pm

dear Suns,

i tried your 2D-Sim for calculating focused shock wafes with cones or wedges (as on PDE pulse detonation engines also used for fast ignition and DDT deflagration to detonation transition) . Your software works really fine !!

see here image of pipe with cone reflector focusing the shock waves from open end.

zono
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Re: Focused wave engine runs!

Postby zono » Fri Sep 24, 2010 10:45 pm

oooops, file is missing
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