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Full-Text Articles in Engineering
Influence Of Approach Flow Conditions On Urban Street Canyon Flow, Karin Blackman
Influence Of Approach Flow Conditions On Urban Street Canyon Flow, Karin Blackman
Electronic Thesis and Dissertation Repository
The turbulent flow within a street canyon and the approaching boundary layer has been studied using idealized wind tunnel models and a semi-idealized field experiment conducted in Nantes, France. The effect of upstream roughness on street canyon flow (lateral length/height, L/h = 30) using either 3D (cube) or 2D (rectangular block) upstream roughness, of the same height as the canyon, has been studied for two streamwise canyon width to height aspect ratios (AR) of 1 and 3 using Particle Image Velocimetry. A further wind tunnel model of equivalent geometry to the field experiment was used to compare with flow data …
Physical Simulation Of Tornado-Like Vortices, Maryam Refan
Physical Simulation Of Tornado-Like Vortices, Maryam Refan
Electronic Thesis and Dissertation Repository
Scaling ratios of simulations are essential to research the effect of tornadic winds on buildings and structures, in both experimental and numerical studies. In order to determine the proper scaling, access to wind fields of simulated and full-scale tornadoes is needed. For the first time here Doppler radar tornado velocity fields are analyzed and compared to experimental tornado-like vortices data in order to establish the scaling necessary to simulate tornadoes in a physical laboratory setting.
A prototype three-dimensional wind testing chamber capable of simulating tornadoes, named Model WindEEE Dome (MWD), was designed and built. Tornado-like vortices were simulated and investigated …