DEVELOPMENT OF A METHOD FOR PREVENTION OF BLOWN SAND BY SPRAYING THE INDUSTRIAL WASTE CLOD

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Blown sand is a serious problem for the inhabitant in the coastal area. The damage is especially serious in the district facing the Japan Sea where seasonal wind is very strong in winter. In order to reduce the strong wind which causes the blown sand, the wind break fence and the net are widely used. But such measures have a problem that the perspective and the landscape at the coastline are much prevented. The new type of countermeasure for mitigating the environmental problems due to the blown sand is developed. Here, the blown sand is prevented by spraying the clod generated from the chemical industry as the waste. The performance of developed method is tested based on results of field measurements, wind tunnel tests and numerical predictions using CFD technique.