English Explanatory Dictionary

scallop theorem

English dictionary entry

Meanings

name
  1. A theorem which states that to achieve propulsion at low Reynolds number in simple (i.e. Newtonian) fluids, a swimmer must deform in a way that is not invariant under time-reversal.

Word forms

scallop theorem the scallop theorem

Etymology

From an explanation of a principle of fluid dynamics given by E. M. Purcell, referring to the opening and closing motion of a scallop's hinge.

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