"The flow is turbulent, the velocity v (x, y, z, t) of the wind can be considered as the superposition of the mean velocity v (x, y, z) which changes only slowly with time, and a fluctuation rate v ¢ (x, y, z, t) can be treated as a dependent random process the space and time.
Given the time scales considered (hours, minutes) in the studies of sea keeping structures, the description of wind can be made by assuming that the mean component is independent of time and the fluctuating component is part of a stationary, ergodic and Gaussian process."
Actually, the mean velocity component is the most probable velocity, while the overall structure of the velocity field fluctuates and changes with respect to time. The entire velocity field is imagined as having a stationary mean and fluctuating 'error' component in order to make the mathematics more tractable, but in reality, the whole velocity structure is non-stationary.
Actually, the mean velocity component is the most probable velocity, while the overall structure of the velocity field fluctuates and changes with respect to time. The entire velocity field is imagined as having a stationary mean and fluctuating 'error' component in order to make the mathematics more tractable, but in reality, the whole velocity structure is non-stationary.
What distribution does wind velocity follow? It seems like it should be 0-infinity with positive skew. If so, should the modal velocity be the most probably velocity. Using the mean value would overestimate the value for the most probable velocity.
Thank you Sirs.
so to use an accurate value of the wind speed especially to assess the wind power.
the fluctuate component is the most explanatory and an analysis of stationarity should be done?
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