From Wikipedia, the free encyclopedia
The Laplace number (La), also known as the Suratman number (Su), is a
dimensionless number used in the characterization of free surface
fluid dynamics. It represents a ratio of
surface tension to the
momentum-transport (especially
dissipation) inside a fluid.
It is defined as follows:
-
where:
Laplace number is related to
Reynolds number (Re) and
Weber number (We) in the following way:
See also
-
Ohnesorge number - There is an inverse relationship, , between the Laplace number and the Ohnesorge number.