Schmidt Number Calculation

The Schmidt number (Sc) is a dimensionless number defined as the ratio of the kinematic viscosity of a fluid to the diffusivity of a scalar (such as concentration) in the fluid. The kinematic viscosity (ν) is a measure of a fluid's internal resistance to flow without taking its density into account, while diffusivity (D) quantifies the rate at which a scalar quantity disperses throughout the fluid.

The Schmidt number is used in fluid mechanics to characterize the relative effects of transport momentum and mass transfer. It plays a significant role in turbulence and mixing studies, particularly in the context of chemical engineering and environmental physics.