冬季の風速低減および夏季の排熱促進を目的とした駅舎内間仕切り壁の最適配置に関する設計手法の提案: 随伴変数法を用いたCFD逆解析の活用に関する研究

摘要

本報告では、随伴変数法を設計に活かす手法として、冬季の風速低減および夏季の排熱促進を目的とした間仕切り壁の最適配置に関する設計手法を検討した。得られた主な如見を以下に示す。1)風環境評価を半屋外空間に適用した結果、設計案の延岡駅舎内に冬季に強めの西風が流入する可能性がある。%The adjoint variable method (AVM) is a method for solving inverse problems, and is used for sensitivity analysis. In this study, the effective usage of inverse analysis based on AVM is considered for the purpose of its use as an approach to design. This paper proposes a method of inverse analysis to determine the optimal arrangement of partition walls in a station building to prevent inflow of wind in winter and to promote heat removal in summer. The analysis was applied to the design of Nobeoka station building, part of a redevelopment project being handled by Office of Kumiko Inui. Usage of inverse analysis based on AVM is proposed as a design approach for determining the optimal placement of partition walls in a semi-outdoor space. In the analysis, surface panels with an aperture ratio property are installed at candidate positions for the partition walls. Forward analysis (CFD) and inverse analysis (AVM) are alternated to compute the optimal aperture ratio. From the resulting aperture ratio, it was determined whether a partition walls was necessary at the candidate position.