Pipe flow Mach number typical aerospace values
Pipe flow Mach number typical aerospace values
(OP)
Hi,
Are pipe flows in pneumatic aerospace systems limited to certain Mach numbers? If so, what are the reasons for this? Are there any issues associated with high pipe Mach numbers? - damage from shocks in the pipe?
Any info is much appreciated.
Kind Regards
James
Are pipe flows in pneumatic aerospace systems limited to certain Mach numbers? If so, what are the reasons for this? Are there any issues associated with high pipe Mach numbers? - damage from shocks in the pipe?
Any info is much appreciated.
Kind Regards
James





RE: Pipe flow Mach number typical aerospace values
Is that what you mean?
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way
RE: Pipe flow Mach number typical aerospace values
No I meant do they size the pipes to limit the maximum pipe flow Mach number in the pipe? E.g. the pipe diameter is changed to ensure the maximum pipe Mach number is 0.6. However, in the case you just mentioned, would the flow rate not equal zero if the pipe is long enough for unity to be reached (according to Fanno flow)?
Cheers
James
RE: Pipe flow Mach number typical aerospace values
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way
RE: Pipe flow Mach number typical aerospace values
Cheers
James
RE: Pipe flow Mach number typical aerospace values
A pipe moves fluids at low mach numbers because that the only efficient way to move them. Mach number flows only happen during very rapid blow down of high pressure fluids from safety or relief valves (for example) into open air.
RE: Pipe flow Mach number typical aerospace values
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way
RE: Pipe flow Mach number typical aerospace values