Laplace Number
Laplace number, abbreviated as La, also called Suratman number, abbreviated as Su, a dimensionless numbers, they are used in the charcaterization of free surface fluid dynamics. It is a ratio of surface tension to the momentum transport inside a fluid.
Laplace number formula |
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\(\large{ La = \frac { \sigma \; \rho \; l } { \eta^2 } }\) | ||
Symbol | English | Metric |
\(\large{ La }\) = Laplace number | \(\large{dimensionless}\) | |
\(\large{ \rho }\) (Greek symbol rho) = density | \(\large{\frac{lbm}{ft^3}}\) | \(\large{\frac{kg}{m^3}}\) |
\(\large{ l }\) = length | \(\large{ft}\) | \(\large{m}\) |
\(\large{ \sigma }\) (Greek symbol sigma) = surface tension | \(\large{\frac{lbf}{ft}}\) | \(\large{\frac{N}{m}}\) |
\(\large{ \eta }\) (Greek symbol eta) = viscosity of liquid | \(\large{\frac{lbf-sec}{ft^2}}\) | \(\large{Pa-s}\) |
Laplace number calculator
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Tags: Fluid Equations