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The average of the mean component will be ____________(a) equal to zero(b) equal to the mean component itself(c) equal to 1(d) equal to the fluctuating componentThe question was posed to me by my college professor while I was bunking the class.I would like to ask this question from Turbulence Modelling in section Turbulence Modelling of Computational Fluid Dynamics

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Right ANSWER is (b) equal to the mean COMPONENT itself

The explanation is: The mean component is already FOUND by taking the arithmetic mean (average) of the flow VARIABLES. So, if the average of only the mean component is TAKEN, it will again be the same mean component itself.



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