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The adjoint variable method (AVM) is a method for solving inverse problems, and is used for sensitivity analysis. This paper reports on a study considering the effective usage of AVM, and examines how AVM could be applied to achieve optimal arrangement of trees for the purpose of reducing wind velocity around a station building. The following conclusions were obtained; Preferential arrangement plan of trees around Nobeoka station for the purpose of wind velocity reduction is calculated by AVM. The results showed that in the case of 10 trees with optimal placement, wind velocity would be reduced by 18% compared to wind velocity without trees. In contrast, in the case of 44 trees with all placement, wind velocity would be reduced by 29%. Even trees number is less than 1/4, the effect of 60 ~ 70% was obtained. These results confirmed the validity of the proposed method.

PROPOSAL OF DESIGN METHOD TO OPTIMAL ARRANGEMENT OF TREES FOR WIND VELOCITY REDUCTION