Search found 11 matches

by Thor
Mon Aug 30, 2010 5:39 pm
Forum: Rocket forum
Topic: One person amateur rocket Denmark
Replies: 4
Views: 2716

Re: One person amateur rocket Denmark

PyroJoe wrote:Doesn't look so much like amateur.
Now those are nozzles!
The booster tests looked amazing, some strange swirling at the end.
Agreed about the nozzles however I do see some high magnitude pulsed combustion going on inside the chamber, must be a mixing issue?.
None the less really amazing.
by Thor
Fri May 14, 2010 4:16 pm
Forum: Pulse detonation engine forum
Topic:
Replies: 4
Views: 3843

Re: ♑

Yikes, A comparison in which it is admitted: "Performance results will be shown and compared to data from a statically operated PDE run at stoichiometric conditions with similar length scales." Probably went through great labor to assure the PDE runs stoichiometric using a fair ratio of brisant fue...
by Thor
Fri May 14, 2010 10:24 am
Forum: Pulse detonation engine forum
Topic:
Replies: 4
Views: 3843

Re: ♑

A really good read on the research results on this topic.

For those who has a similar interest I attached the pdf doc:
AIAA-2005-0228.pdf
(1.54 MiB) Downloaded 375 times
Good reading.
by Thor
Sat May 08, 2010 11:10 am
Forum: Valveless pulsejet forum
Topic: Just a thought
Replies: 4
Views: 1935

Re: Just a thought

I was thing if you took a plate, Drilled holes in it with the same volume as the intake. I was thinking it would restrict the out flow, And if you made the right flair it would suck enough air in, I think if it did work it would work the best in the front of the intake. just wondering what some els...
by Thor
Wed May 05, 2010 7:46 pm
Forum: Valveless pulsejet forum
Topic: origonal ???
Replies: 33
Views: 8275

Re: A big mouthed thrust augmenter ???

A better thrust augmenter can be made by having the tailpipe of the pulse jet stick out just a little bit into a large chamber. This chamber and its associated outlet being a Helmholtz resonator tuned to the same frequency as the pulse jet. :) hr.jpg The area of the mouth of this resonator being be...
by Thor
Sun Apr 25, 2010 10:38 am
Forum: Jet Vehicles, All Types
Topic: The Thrill of Flying the SR-71 Blackbird
Replies: 3
Views: 3343

Re: The Thrill of Flying the SR-71 Blackbird

Thanks Viv. Was a great read.One part that really made me chuckle was this :lol: : Walter startled the controller by asking for a ground speed check from 81,000 feet, clearly above controlled airspace. In a cool, professional voice, the controller replied, ' Aspen 20, I show you at 1,982 knots on th...
by Thor
Sun Apr 18, 2010 8:20 pm
Forum: Valveless pulsejet forum
Topic: origonal ???
Replies: 33
Views: 8275

Re: origonal ???

so when thor critizised me for not doing enough reseaserch, when he had not thought enough about the sudoname he was hiding behind, i felt slighted. for the record what the mythical pagan god Thor did with goats is, he had two of them pull him around in a cart. yes Thor is a two goat power god Firs...
by Thor
Fri Apr 16, 2010 12:02 pm
Forum: Valveless pulsejet forum
Topic: origonal ???
Replies: 33
Views: 8275

Re: origonal ???

To any one injecting water or steam or thinking about doing so to get more thrust A lot of the 'exhaust' of the Saturn 5 rocket was hydrogen from deliberate incomplete burning of its fuel. The reason for that was that hydrogen can be accelerated to a higher speed. Rubbish Paul. That is poor engine ...
by Thor
Sun Mar 21, 2010 2:11 pm
Forum: Valveless pulsejet forum
Topic: Theory questions answered here?
Replies: 10
Views: 3100

Re: chamber lenth?

if the exaust is 1/4 of a wave lenth. :) and the inlet is 1/6 of a wave lenth. :) is there a standed lenth for a combustion chamber :?: :? the figuer of a 1/6th of a wave lenth comes from a quoat i read else were on this sitethat the inlet should be half of the wave lenth of the first odd harmonic....
by Thor
Sat Oct 10, 2009 2:44 pm
Forum: Valveless pulsejet forum
Topic: New way of building a valveless pulse-jet: integrated intake
Replies: 22
Views: 5518

Re: New way of building a valveless pulse-jet: integrated intake

Ok I fixed the injector problem and tried again. I also tried a thrust reading but the sun was shining on the display so I can't see shit on the video. fantastic. Anyway, I've got a small vid of the engine running. It starts a lot easier, I had throttle controll and all but still no sustained run. ...
by Thor
Fri Apr 10, 2009 7:13 pm
Forum: Rocket forum
Topic: Top gear shuttle
Replies: 1
Views: 2406

Re: Top gear shuttle

Greetings. Long time reader first time poster.You may pronounce me as T :wink: .Or any way you like. ------------------------------------------------- Regarding the OP.Yes that is a fine example of British humor.I was amazed it worked - well - up until the end the shuttle had to disengage from the e...