Ten settling disks in a FENE-CR type fluid: L=5


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Ten sedimenting disks form stable chains of 2 or 3 particles after drafting, kissing and chaining, which is different from the disks settling in Newtonian fluid. In the FENE-CR model, the polymer extension limit is set to be L=5 in the function f(C)=L*L/(L*L-tr(C)) where C is the conformation tensor.