The Stokes number is a dimensionless number that characterizes the behavior of particles suspended in a fluid flow, defined as the ratio of the particle's inertia to the viscous forces acting on it. This number helps determine how effectively a particle can follow the fluid motion, indicating whether it is likely to settle or remain suspended. The Stokes number is crucial in analyzing particle-laden flows, as it influences the dispersion, sedimentation, and interactions of particles within the fluid medium.
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