Velocity stack
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Velocity stack
Is the curve on a velocity stack a parabola?
Re: Velocity stack
An ellipse.Corvus wrote:Is the curve on a velocity stack a parabola?
Real torque curves don't have a first derivative. :-^)
Re: Velocity stack
Brilliant. Thankyou for posting that info.HerrFlick wrote:An ellipse.Corvus wrote:Is the curve on a velocity stack a parabola?
Quasi linear Mach number evolution! What the f?
Are they saying the air acceleraties in constant fashion, from zero to whatever?
Re: Velocity stack
Corvus wrote:HerrFlick wrote:An ellipse.Corvus wrote:Is the curve on a velocity stack a parabola?
snip
Brilliant. Thankyou for posting that info.
Quasi linear Mach number evolution! What the f?
Are they saying the air acceleraties in constant fashion, from zero to whatever?
I think they mean the shape keeps the acceleration constant as air is sucked into the bellmouth, the idea being to avoid pockets of turbulence.
Here's a straight pipe intake vs an elliptical bellmouth: notice the difference in uniformity of speed (colour) at the exit of the bell.
Real torque curves don't have a first derivative. :-^)