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The evolution of the L2-error 
in time for the ASTFEM solutions using N = 101 and 201 for experiments of various sedimentation coefficient s. Here the rotor speed was simulated at 50,000 rpm, D = 10−7, and m = 5.8, b = 7.2. This graph indicates that the accuracy of an ASTFEM solution does not depend much on the s values when the concentration boundary is in steady propagation. The same conclusion is true for Claverie's solution and the moving hat solution.
