second-moment closure

second-moment closure

[¦sek·ənd ‚mō·mənt ′klō·zhər]
(fluid mechanics)
A model of the Reynolds stresses in turbulent flow which is based upon providing transport equations for the Reynolds stresses themselves, thus abandoning the concept of eddy viscosity.
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In addition, FLUENT makes available a large suite of turbulence models ranging from one-equation eddy viscosity models through full second-moment closures.
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