To nondimensionalize a system of equations, one must do the following:

To nondimensionalize this, it must be rewritten as a function of a dimensionless variable.

One can nondimensionalize in two ways.

Make a coordinate substitution to nondimensionalize the differential equation

The spinodal length and spinodal time can be used to nondimensionalize the equation of motion, resulting in universal scaling for spinodal decomposition.

The densimetric Froude number is usually preferred by modellers who wish to nondimensionalize a speed preference to the Richardson number which is more commonly encountered when considering stratified shear layers.