Francis L.'s user avatar
Francis L.'s user avatar
Francis L.'s user avatar
Francis L.
  • Member for 5 years, 2 months
  • Last seen more than a month ago
2 votes
0 answers
56 views

Why do recoilless rifle ammunition still have casings?

2 votes
1 answer
88 views

What gives gas turbine/turbojet engines such high energy density?

2 votes
3 answers
363 views

How do stators in axial compressors work?

2 votes
2 answers
68 views

If a gas is pushed through a widening section of a pipe with a piston, will the pressure increase?

2 votes
1 answer
62 views

Is there a positive displacement compressor that can rival axial compressors in terms of air mass flow to weight ratio?

2 votes
4 answers
1k views

Is high pressure combustion hotter than atmospheric pressure combustion

2 votes
3 answers
81 views

Is there a positive displacement pump that experiences only rolling resistance?

1 vote
2 answers
33 views

A shape that focuses light from the widest range of incidence angles into a smaller area

1 vote
0 answers
17 views

why did my ceramic matrix composite turn out brittle as snow?

1 vote
1 answer
93 views

Does pressure in a centrifugal compressor increase along the path of the flow?

1 vote
1 answer
848 views

Why do centrifugal compressors have a higher compression ratio per stage than axial compressors?

1 vote
2 answers
199 views

why do centrifugal compressors have curved blades?

1 vote
5 answers
232 views

If an aircraft's wing blows air downwards, how is the momentum conserved in level flight?

1 vote
1 answer
120 views

Do stators in axial flow compressors have airfoil geometry?

1 vote
2 answers
563 views

Is there a way to calculate mass flow rate of an axial compressor?

1 vote
1 answer
66 views

Why did ramjet AA missiles fall out of favor over pure rockets?

1 vote
2 answers
143 views

Inefficiency of intermittent burn in rockets

1 vote
0 answers
174 views

Basic dimension relationships in a valveless pulsejet engine

1 vote
2 answers
25 views

Fluid dynamics' equivalent to current smoothing

1 vote
1 answer
32 views

Are ceramic materials suitable for making locking lugs for guns?

0 votes
1 answer
961 views

Why does combustion happen at constant pressure in jet engines?

0 votes
2 answers
4k views

How to determine minimal wall thickness for a rectangular pressure vessel?

0 votes
0 answers
22 views

Are there impulse turbines operating on hot exhaust gas?

0 votes
1 answer
36 views

Turbineless steam propulsion for ships

0 votes
1 answer
29 views

Are there succesful solid fueled internal combustion engines?

0 votes
1 answer
59 views

can simply beating cast material with a hammer inside a mold improve it's strength

0 votes
2 answers
220 views

When designing a carburetor, is the air to fuel ratio calculated or just experimentally adjusted?

0 votes
1 answer
49 views

Can a piece of conductor be made invisible to radar by overdamping?

0 votes
0 answers
134 views

Is there a free software that will let me solve thermodynamic cycles?

0 votes
1 answer
84 views

Is there a substance i could treat concrete with to make it not scratched by steel?