Morton number
The Morton number (Mo) is a dimensionless parameter of fluid mechanics. It is particularly useful for the characterization of the dispersed two-phase flow of importance (for example, a gas bubble or a drop ). The Morton number depends only on the physical characteristics of the dispersed ( internal ) and continuous ( outer, surrounding ) phase. It measures the relative importance of viscous forces to the surface tension. Depending on the Morton number and the Eötvös number, the shape and the rising / falling velocity of the bubble / drop characterize the gravitational field.
Alternatively, the Morton number of the key figures Eötvös number ( Eo ) capillary number (Ca) and Reynolds number (Re ) can be calculated.
The individual symbols stand for the following sizes:
- - Acceleration of gravity, ( in SI units: m/s2)
- - Difference in density of the two phases ( in SI units: kg / m 3 )
- - Density of the continuous phase ( in SI units: kg / m3) )
- - Dynamic viscosity of the continuous phase ( in SI units: kg / (s · m))
- - Interfacial tension ( in SI units: J/m2 = N / m)
- Code ( Fluid Mechanics )