irrotationalityn.
/ˌɪrəʊteɪʃəˈnalɪti/ Physics.
The property or state of being irrotational.
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irrotationality1960
1960 McGraw-Hill Encycl. Sci. & Technol. VII. 402/1 For an incompressible fluid, the continuity equation..is div v = 0; hence, combining this relation with irrotationality gives Laplace's equation, div (grad ϕ) = 0.
1967 Progress Aeronaut. Sci. VIII. 6 The velocity field is determined by the equation of continuity and the condition of irrotationality.
This entry has not yet been fully updated (first published 1976; most recently modified version published online March 2018).
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