what is relation between air velocity(lit/s)and pressure
what is relation between air velocity(lit/s)and pressure
(OP)
hi
is there any direct or indirect relation between air velocity(lit/s)and air pressure .if u know please help me and write its formula
is there any direct or indirect relation between air velocity(lit/s)and air pressure .if u know please help me and write its formula





RE: what is relation between air velocity(lit/s)and pressure
rho is air density = 0.002377 at sealevel
(the units are slugs/ft^3)
v is velocity in ft/sec
pressure is lbf/ft^2
RE: what is relation between air velocity(lit/s)and pressure
One needs to use the Bernoulli equation.
Check out eFunda.com at:
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Thanks,
Gordan
http://engware.i-dentity.com
RE: what is relation between air velocity(lit/s)and pressure
Looks like you're in SI so I'd convert the lit/s to m^3/s then go from there.
rb1957 equation is correct but in metric you'd use m/s for velocity, kg/m^3 and N/m^2 (or equivalent) for pressure.
Be aware, in a real world situation this will most likely only be an approximation.
KENAT, probably the least qualified checker you'll ever meet...
RE: what is relation between air velocity(lit/s)and pressure
but a good catch with OPs units.
and if we're in a duct, what's the pressure ?