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This topic has appeared in the English Wikipedia rankings 1 time. It first appeared on 2026-08-12 and was most recently seen on 2026-08-12.
A second-order fluid is a fluid where the stress tensor is the sum of all tensors that can be formed from the velocity field with up to two derivatives, much as a Newtonian fluid is formed from derivatives up to first order. This model may be obtained from a retarded motion expansion truncated at the second-order. For an isotropic, incompressible second-order fluid, the total stress tensor is given by
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