This is actually why we have computers – so 13yo attention deficient quackers
can gratify their engineering curiosities with near-endless componentry configs
in their digital hypersonic quest to defeat Grand-Evil-Giuseppeo of the evil
Capricciosa System, freeing Princess Margherita and (of course) providing free
pizza for all.
Troy
From: arocket-bounce@xxxxxxxxxxxxx <arocket-bounce@xxxxxxxxxxxxx> On Behalf Of
Jake Anderson ("jake")
Sent: Wednesday, April 19, 2023 2:40 PM
To: arocket@xxxxxxxxxxxxx
Subject: [AR] Re: pressure and thrust (was Re: relativity abandons...)
When the nozzle departs the motor you get a "signifiant" impulse, the nozzle
gains a signifiant velocity in the other direction.
High speed shrapnel has a habit of not behaving as you would expect it to.
Be safe.
On 19/04/2023 12:17 pm, kevin ward wrote:
Just thinking... If this motor, encased in Kevlar, we're 2 fail, it would be a
seam leak, maybe popping the nozzle... I don't c all of it going, evenly
throughout, and impossible to shatter ???
I test burned some 1% rich aluminum candy, without insulation, one wrap over
phenolic, maybe 100psi nozzle... The stainless steel "fender washer" nozzle
leaked. Fibers intact, minus epoxy, possibly reusable, though no more pretty
yellow
Not saying I'm not gonna prepare 4 explosion
On Mon, Apr 17, 2023, 6:37 PM Henry Spencer <hspencer@xxxxxxxxxxxxx
<mailto:hspencer@xxxxxxxxxxxxx> > wrote:
On Mon, 17 Apr 2023, kevin ward wrote:
Can anyone help with this equation...
More psi in combustion chamber, no matter what, results in more thrust ?
BurnSim says so...
But dad insists NASA knows best and may 1 at the throat is penultimate.
I could see a different analogy that proves me wrong as in with a boat
and it's propeller. There is a point before velocity increases, that if
you apply too much torque, you're going to cavitate. Does that apply in
rockets ?
I insist that NASA is limited in acceleration due to what they're
sending up; people, equipment, O-rings that go bang, etc. And the whole
point is to "attain escape velocity as quickly as possible".