GATE Mechanical Engineering (ME) 2016 Shift 1 Solved Paper

Question : 23 of 65

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The instantaneous stream-wise velocity of a turbulent flow is given as follows:

u (x,\:y,\:z,\:t) = u↖{{¯}\: (x,\:y,\:z) + u}↙{′} (x,\:y,\:z,\:t)

The time-average of the fluctuating velocity u’ (x, y, z, t) is

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