Wind Speed Profiling Articles & Analysis
4 articles found
With the latest release of the AERMOD model dated 22112, the U.S. EPA has continued to expand the formulated capabilities of the model. Most of these updates have been added as ALPHA non-default options, a concept we covered in a previous modeling tip. AERMOD 22112 contains 6 new ALPHA options which are described below: Platform Downwash Taken from the Offshore and Coastal Dispersion Model ...
In an attempt to develop an improved model for the wind-speed profile valid for urban boundary layers, the role played by the roughness length z 0 , i.e., the constant of integration of the vertical gradient of the wind speed, is extended. z 0 is assumed here as a ‘dynamic’ variable rather than as a ...
Tracer sampler coverage ranged over seven arcs from 50 to 3000 m downwind. Meteorological data, including wind speed, wind direction, temperature, sigma-theta and sigma-w, were available from an on-site tower at the 33-m level. Atmospheric stability and wind speed profiles were influenced by the ...
Simulations were performed to test the suitability of using the model to reproduce the flow and turbulence in the presence of buildings in a complex configuration. Wind speed and turbulent kinetic energy profiles from measurements and simulations with different turbulence schemes were compared. Preliminary results emphasise the difference between ...