suggestions about aerodynamic design

[MIG-29]

Hi all,

I am working on designing a flying wing that should reach a maximum speed 150 m/s (around 500 feet/second).
I intend to use pulsejet as propulsion. Does anyone have any information about how much fuel a pulsejet uses?(probably in the form of quantity per hour per pound of thrust).

As for the aerodynamics, I intend to use a symmetrical airfoil. The shape of the wing will be "a triangle" with the wingspan of ~11 feet. Anyone has better suggestions for the shape? :) I am looking at minimizing the chances for the fluttering to appear. What other parameters would one consider in order to design an optimum flying wing for the speeds involved (~500 feet/second)

1.) Does anyone know a good software to get estimates of the aerodynamics characteristics of a flying wing?
2.) Does anyone know a good software/method to estimate the chances for the fluttering to appear? I know it depends on speed, shape, airfoil...

Any other advice will be greatly appreciated.

I have some software packages (XFOIL, Fluent-don't like it too much for production work...) but I would like to see maybe there is somebody that has better methods, suggestions. An advice that comes from experience is usually way better than working with a software for 1 month to get nowhere.

Thanks,
MIG-29

[dalbert02]

500fps=340mph!
Are you serious? Something flying that fast won't be seen for more then about 2-3 seconds. What is the fastest plane you have flown? I *think* you might need to do some more research or set your goals a little lower...
-dave

[macboffin]

As Dalbert says, thats rather fast ;about six miles a minute. Having seen a twin pulse jet delta flying, at about 200 mph, the only time it was in a straight line, in a five minute flight, was at take-off and landing.The rest of the time it was a distant blur! The noise is horrendous by the way.
You will need ali or epoxy glass/carbon fibre construction, all surfaces mass and aerodynamically balanced, and hefty servos. You should start with a delta, powered with a .90 0n tuned pipe and see how you get on.

[UAVeez]

"A pulse-jet engine delivers thrust at zero speed and can be started from rest, but the maximum possible flight speeds are below 960 km/h (600 mph)".

Copy & paste from this article:

http://conceptengine.tripod.com/conceptengine/id17.html

[N2EC]

http://www.youtube.com/watch?v=1e-Ar7gb4tQ

Shot in UK. Maybe Mac was referring to this one.