Diurnal Wind and Temperature Profiles in the Atomspheric Layer (0-150 Meters) of Interest for Natural Draft Cooling Towers

摘要

The general features of the planetary boundary layer are reviewed with specific emphasis on the time scales and height ranges of interest for natural draft cooling towers. Equilibrium, adiabatic wind profiles are described together with modeling approaches. Diurnal and seasonal effects are discussed in terms of observed profiles of windspeed and air temperature. A power-law model using Brookhaven meteorological data is recommended for estimating vertical profiles of wind. Near-ground temperature gradients may also be inferred. With ground-level values of windspeed and air temperature known, corresponding vertical profiles of both quantities may thus be constructed. (ERA citation 03:019740)