Ruark number

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The Ruark number (RU) is a dimensionless number see in fluid mechanics.

It is defined as follows:

<math>Ru = \frac{\rho u^2}{P}\,</math>

where:

• <math>\rho = </math> density
• <math>u = </math> velocity
• <math>p = </math> pressure

v • d • e Dimensionless numbers in fluid dynamics

Archimedes • Bagnold • Biot • Bond • Brinkman • Capillary • Damköhler • Dean • Deborah • Eckert • Ekman • Eötvös • Euler • Froude • Galilei • Grashof • Hagen • Knudsen • Laplace • Lewis • Mach • Magnetic Reynolds • Marangoni • Morton • Nusselt • Ohnesorge • Péclet • Prandtl • Rayleigh • Reynolds • Richardson • Roshko • Rossby• Ruark • Schmidt • Sherwood • Stanton • Stokes • Strouhal • Suratman • Taylor • Weber • Weissenberg • Womersley

it:Numero di Ruark