User:Diesel Port Developer/Loss coefficient

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Flow Coefficient

Pressure losses in turbulent flow are approximately proportional to the square of flow velocity. A loss coefficient for a pipe, passage or a component is defined ^[1] as-

K = \frac{δ P}{\frac{1}{2} ρ v^{2},}

where (using SI units):

$K$	= loss coefficient (unitless),
$δ P$	= change in total pressure in pascals,
$ρ$	= fluid density in kg/m³ (e.g. density of air),
$v$	= fluid velocity in m/s.

A system loss coefficient is defined as the non-dimensional ratio of the total pressure difference when the real component is installed to the total pressure different when there is a zero-loss component. The Pressure Loss is non-dimensionalized by the component's inlet or exit Dynamic Pressure

References

↑ D. S. Miller Internal Flow Systems

External links

www.example.com

[1] D. S. Miller Internal Flow Systems

[1]