Abstract
During the last century rapid urbanization of coastal zones has been widespread all over the world. This highly increasing population in coastal zones leads to the construction of restaurants, sailing clubs, beach houses and pavilions at the beach-dune interface. Structures located adjacent to dunefields change the local airflow patterns which, in turn, alter sediment transport pathways and influence the aeolian landforms [Jackson and Nordstrom, 2011]. In this paper, firstly the impacts of buildings' characteristics on airflow patterns are investigated, specifically the impacts of building length, width and height. Secondly, the near-bed horizontal divergence of the velocity field is calculated for one case to infer resulting erosion and deposition patterns around the building. For all these purposes, a numerical model is developed.Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/LNf-_Izu6Wk
Highlights
During the last century rapid urbanization of coastal zones has been widespread all over the world
The impacts of building length, width and height are investigated in figures 4, 5 and 6, respectively
U Magnitude (m/s) airflow patterns and wind velocity magnitudes around the buildings are given at the horizontal plane at an elevation of y = 0.0125 m from the ground level
Summary
During the last century rapid urbanization of coastal zones has been widespread all over the world. This highly increasing population in coastal zones leads to the construction of restaurants, sailing clubs, beach houses and pavilions at the beach-dune interface. Structures located adjacent to dunefields change the local airflow patterns which, in turn, alter sediment transport pathways and influence the aeolian landforms [Jackson and Nordstrom, 2011]. The flow field contains complex recirculation zones in front of the building, over the roof of the building, around the lateral sides of the building and in the downstream cavity region just behind the rear face of the building
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