Transport and deposition of snow can be very strong, depending on meteorological, topographical and geometrical parameters. In the case study described here, the snow deposition around a mountain hat was very strong and had to be reduced considerably. Measurements at the real site during one winter revealed the relevant mechanism being wind transport during snow fall. Improvements have been studied both numerically by CFD (Computational Fluid Dynamics) simulations and by an experimental study on a scaled water channel model. The practical implications of the proposed solutions were supported by the water channel model study, where quartz powder in water flow was used to describe the behaviour of snow in air flow. The realization of the proposed solution showed a good success and proves the usefulness of the current approach. A CFD study supported by model and real case validations can be a very effective design tool particularly in the early design stage but also along the whole design process.
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