Building Wind - Building Wind

Japanese: ビル風 - ビルかぜ
Building Wind - Building Wind
Strong winds blowing near a high-rise building. When wind hits a high-rise building, the air splits up and down and left and right. In particular, when the split winds go around the sides of the building, they create fast currents that run diagonally from top to bottom around the side of the building, generating strong winds locally near the ground. When the wind hits a building, it flows along the wall, but when it reaches a corner of the building, it can no longer flow along the wall and is separated from the building and flows away. The separated wind becomes stronger than the surrounding winds, generating strong winds locally. Furthermore, strong winds can blow between buildings around multiple high-rise buildings. Nowadays, buildings are being constructed with special shapes to prevent strong winds from building up.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:
高層ビル近くで吹く強風。高層ビルに風があたると,空気が上下,左右に分かれる。特に左右に分かれた風がビルの側面を回り込む際に,建物の側面を上方から下方に斜めに向かう速い流れをつくり,地上付近に局部的に強風を発生させる。また,風は建物にあたると壁面に沿って流れるが,建物の隅角部までくるとそれ以上壁面に沿って流れることができず,建物からはがれて流れ去る。はがれた風はその周囲の風よりも強くなるため,局部的に強風が発生する。さらに,複数の高層ビル周辺では,ビルとビルの間を吹き抜ける強風の発生もある。今日では強いビル風が発生しないよう,形状を工夫したビルも建設されている。

出典 ブリタニカ国際大百科事典 小項目事典ブリタニカ国際大百科事典 小項目事典について 情報

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