Key result
Mixing in plane strain laminar flow can proceed at exponential rates, with the most rapid mixing produced by plane strain extensional flow.
Authors
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Challenges linear mixing assumptions; leaves open experimental validation in applied flows.
This theoretical fluid dynamics study demonstrates that exponential rates of mixing are possible in plane strain laminar flow.
Lewis Erwin (1978) studied this question. Mixing in plane strain laminar flow can proceed at exponential rates, with the most rapid mixing produced by plane strain extensional flow.
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