- 學位論文
應用建築資訊模型BIM系統整合CFD模擬探究公共建築對城市風環境影響-以畢爾包古根漢美術館為例
Integration of BIM system with CFD Simulations for Studying Wind Influences of Public Buildings on the Urban Environments:A Case Study of the Guggenheim Museum Bilbao
摘要
本研究創新之處是透過BIM系統平台整合CFD從風環境分析與都市公共空間的觀點出發，研究公共建築-畢爾包古根漢美術館對城市環境的風環境影響。古根漢美術館落成以來以其不規則的波浪狀與非傳統的外觀聞名，以此公共建築為城市招牌，建築本身更是公共藝術的代表，每年參觀人數達150萬人次，吸引如此高的人潮，相對的行人風環境舒適與安全也就更加重要。 在數值模擬上成功建立古根漢美術館不規則流線幾何構型，與高品質之多區塊非結構化邊界網格系統，建立三維、穩態、不可壓縮流之k-ε紊流理論模型為基礎的模擬，以預測流場結構。透過模擬結果來探究古根漢美術館的設立對畢爾包城市周圍環境生態之風環境影響，以及氣流流經古根漢與周遭環境，其建築群各結構物間所產生之複雜流動現象，來分析構型與環境所產生的互動，以及其公共空間中行人風場的舒適安全，能夠有效掌握在不同的氣候條件下，古根漢周遭環境建築風場之速度分佈情形，對於未來輔助建築與都市設計階段，在永續環境規劃與改善上具有極大的參考價值。
並列摘要
This study integrates the BIM system with CFD simulations for exploring the wind influences of public buildings–the Guggenheim Museum Bilbao on urban environments. As an extraordinary milestone of digital technology in the community of architectural design, the Guggenheim Museum in Bilbao, designed by Frank O. Gehry, a world famous architect and winner of the Pritzker Architecture Prize, had been praised “the greatest building of our time”. The museum has attracted attentions all over the world by its glittering titanium-clad walls and the randomness of the curves for catching the light since its completion. The present research considered the wind crossing over the Guggenheim Museum, and performed CFD simulations to resolve the airflow characteristics around the museum for investigating the interaction of buildings with urban environments in summer and winter times. The wind speed distributions can be further employed to assess the pedestrian comfort level for the featured spots around the museum. The predicted results indicated a pleasant wind condition for visitors to sit or stand at the pedestrian level for extended periods in the area encircling the museum during the summer period. In contrast, we also identified the surface of the Nervion River, the neighborhood of the La Salve Bridge and the museum plaza as the areas under pedestrian dangerous wind speeds in wintertime. This thorough CFD study may prove useful for improvement of the wind environmental quality in urban areas.