Wind-tunnel experiment on snow drifts

Wind-tunnel experiment on snow drifts

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Credit: PHILIPPE PLAILLY/SCIENCE PHOTO LIBRARY

Caption: Wind tunnel experiment at CSTB, Nantes, France, showing a simulation of how snowdrifts might form in a region of the Alps where it is intended to construct a road. Here, the flow of snow that swirls around the model pedestrians is, in fact, particles of magnesium carbonate. Installed in 1979, the CSTB tunnel can create winds of over 100 km/hour through an area 4 meters wide by 2 meters in height. Models are built at a scale of 1/100 or 1/200. Subjects recently studied have included turbulence studies of the IBM tower in La Defense, a high-rise area of Paris, the Pyramid at the Louvre and ESA's Ariane rocket.

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Keywords: engineering, modelling, road construction, snow dispersal, snowdrift, technology, wind tunnel

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