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The characteristics of the flow fields around falling hailstones of diameters 1 to 10cm are studied. The flow fields are obtained by numerically solving the time-dependent Navier–Stokes equations for flow past hails which are assumed to be smooth spheres. The fall velocities of the hails are based on observational derived values. The Reynolds numbers of these flow fields range from 5780 to 206,000...
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