Large eddies are _________(a) two-dimensional and isotropic(b) two-dimensional and isotropic(c) three-dimensional and anisotropic(d) two-dimensional and anisotropicThe question was asked in homework.I need to ask this question from Turbulence Modelling in portion Turbulence Modelling of Computational Fluid Dynamics

Large eddies are _________(a) two-dimensional and isotropic(b) two-dim

1.	Large eddies are _________(a) two-dimensional and isotropic(b) two-dimensional and isotropic(c) three-dimensional and anisotropic(d) two-dimensional and anisotropicThe question was asked in homework.I need to ask this question from Turbulence Modelling in portion Turbulence Modelling of Computational Fluid Dynamics
Answer» Right choice is (c) three-dimensional and ANISOTROPIC Best EXPLANATION: TURBULENT flows are characterized by their three-dimensional fluctuation. So, the large eddies are ALSO three-dimensional. The flow variables highly vary in all three directions. This leads to an anisotropic NATURE. Especially, large eddies are highly anisotropic.

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