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In a turbulent flow, are time average velocity components.The fluctuating components are u', v' and w’ respectively. Theturbulence is said to be isotropic if:  
  • a)
  • b)
  • c)
  • d)
    None of the above situations prevails
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
In a turbulent flow, are time average velocity components.The fluctua...
Ans. (d) Isotropic Turbulence: Turbulence whose properties, especially statistical correlations, do not depend on direction.
Strictly speaking, isotropy, i.e.  ndependence of orientation, implies homogeneity, i.e. independence of position in space. In most situations, all the averaged properties of isotropic turbulence can also be assumed to be invariant under reflection in space.
For Isotropic turbulence and  Where i ≠ j
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In a turbulent flow, are time average velocity components.The fluctuating components are u', v' and w’ respectively. Theturbulence is said to be isotropic if:a)b)c)d)None of the above situations prevailsCorrect answer is option 'D'. Can you explain this answer?
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