Focused wave engine runs!

Moderator: Mike Everman

Viv
Posts: 2158
Joined: Sat Oct 04, 2003 2:35 pm
Antipspambot question: 125
Location: Normandy, France, Wales, Europe
Contact:

Re: Focused wave engine runs!

Post by 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
"Sometimes the lies you tell are less frightening than the loneliness you might feel if you stopped telling them" Brock Clarke

Viv's blog

Monsieur le commentaire

Bruno Ogorelec
Posts: 3542
Joined: Sat Oct 04, 2003 7:31 am
Antipspambot question: 0
Location: Zagreb, Croatia

Re: Focused wave engine runs!

Post by 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.

Tom
Posts: 603
Joined: Sun Oct 05, 2003 12:55 pm
Antipspambot question: 0
Location: UK

Re: Focused wave engine runs!

Post by 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
Experience speaks more then hypothesizing ever can. More-so in chemistry.

steve
Posts: 1029
Joined: Sun Jun 06, 2004 12:29 am
Antipspambot question: 0
Location: Clinton Conneticut / Melbourne Flordia
Contact:

Re: Focused wave engine runs!

Post by 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.
Attachments
DSC01743.JPG
FW with augmentor2
DSC01743.JPG (13.17 KiB) Viewed 10005 times
Image

Bruno Ogorelec
Posts: 3542
Joined: Sat Oct 04, 2003 7:31 am
Antipspambot question: 0
Location: Zagreb, Croatia

Re: Focused wave engine runs!

Post by 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.

Suns
Posts: 23
Joined: Sun Sep 19, 2010 2:55 pm
Antipspambot question: 125

Re: Focused wave engine runs!

Post by 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

zono
Posts: 78
Joined: Wed May 28, 2008 1:03 pm

Re: Focused wave engine runs!

Post by 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
___________________________
zono - the thruster buster
--------------------------------------

zono
Posts: 78
Joined: Wed May 28, 2008 1:03 pm

Re: Focused wave engine runs!

Post by zono » Fri Sep 24, 2010 10:45 pm

oooops, file is missing
Attachments
00939.jpg
00233.jpg
00062.jpg
___________________________
zono - the thruster buster
--------------------------------------

Post Reply