Defined to be the ratio of an internal resistance to an external resistance.
In the context of the thermal fluids, it is ratio of gravitational and surface tension forces.
function BondNumber extends Modelica.Icons.Function; input SI.Acceleration g_n "Gravitational constant"; input SI.Density rho_l "Liquid density"; input SI.Density rho_v "Vapor density"; input SI.Length L "Characteristic length"; input SI.SurfaceTension sigma "Surface tension"; output Units.NonDim Bo "Bond number"; end BondNumber;