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系統識別號 U0026-1305202016504800
論文名稱(中文) 自由曲面的空氣微粒去除潛力研究-以中庭空間為例
論文名稱(英文) Exploring the Potential of Free-Form Surfaces for Air Particulate Removal - A Case Study of Atrium Space
校院名稱 成功大學
系所名稱(中) 建築學系
系所名稱(英) Department of Architecture
學年度 108
學期 2
出版年 109
研究生(中文) 李馨綸
研究生(英文) Hsin-Lun Li
學號 N76064082
學位類別 碩士
語文別 中文
論文頁數 110頁
口試委員 指導教授-鄭泰昇
指導教授-蔡耀賢
共同指導教授-黃蔚欣
口試委員-劉舜仁
口試委員-劉荔
中文關鍵字 自由曲面  空氣微粒  計算流體力學  物理淨化 
英文關鍵字 Freeform Surface  Particulate Matter  CFD  Physical Purification 
學科別分類
中文摘要 懸浮微粒污染已成為各國環境健康的重大問題,建築作為人的棲身之所,起到保護與安身的作用。顆粒物是環境中較難控制的因數,其運動軌跡與氣流息息相關,卻存在些許差異。建築對顆粒物的抑制能力直接相關於顆粒物對人體的危害程度,而現有通過將空間封閉來阻擋顆粒物進入建築的設計手法,卻恰恰違反了建築採光與通風的設計模式。
本研究以半戶外中庭為設計實作對象,提出針對懸浮微粒的中庭頂棚設計策略,將曲面對氣流在速度與方向上的引導為研究目標,試圖藉由曲面達到物理分離的結果,再搭配適當的開口設計,尋找建築介面被動式減少顆粒物的設計方法。而曲面型態的設計根據,首先為使含有交通污染源的氣流與人的使用空間分離,其次則運用曲面改變風道的截面積,使風速下降並沉澱顆粒物,達到被動式的物理減緩。研究前期需分析曲面設計的合理性;研究過程以流體力學模擬選擇最佳的設計方案並歸整出設計方法;研究後期探討曲面建造的困難點與適用性。中庭增設的曲面頂棚如何針對顆粒物生成最佳的設計方案成為此研究的核心目標。
本文提出的以曲面作為物理分離顆粒物的手法,其實際應用的可能性很大程度上取決於便捷和形態適應性強的自由曲面建造方法。然而,常見的曲面建造工藝都很昂貴且很耗時。因此,本研究引進編織結構作為曲面建造的設計手法。編織結構是一個創新的自由曲面建造系統,能因應變化的曲面設計條件,生成與之形態一致編織式空間網殼,具備結構輕質、建造便捷、節能環保等優勢,也是本研究設計發想的核心技術,以及後期成果展現的重要方法。如此,從設計、模擬、分析到建造等一系列技術方法,形成本研究完整的空氣微粒去除解決方案。
英文摘要 Air particulate pollution has become a major issue for environmental health in various countries. As a shelter for people, a building plays the role of protection and security. The inhibition ability of the building to the particles is directly related to the harm degree of the particles to human body. However, the design method of preventing particles from entering the building violates the basic mode of building lighting and ventilation. This study looks for the regularity of airflow in speed and direction guided by curved surfaces and try to achieve the result of physical separation. Then, an appropriate opening design is used to analyze the design method for slowing the entry of particles into the space.
This study takes the building atrium as the design object and proposes a design strategy for the atrium ceiling in response to the air pollution problem. The purpose is to separate the air flow which containing the source of traffic pollution from the human use space. And use the curved surface to change the cross-sectional area of the wind tunnel. When the wind speed drops, there is an opportunity to precipitate particles and achieve passive physical slowdown effect. So, the core goal of this study is to generate the best atrium curved ceiling design for particulate matter.
Using the curved surface as a physical separation method can make the building a good combination of spatial form and function, but curved surface construction has always been a more difficult construction issue. Therefore, this study introduces the weaving structure as a design method for curved surface construction. Weaving structure is a new freeform construction system. It can respond to various surface design conditions and propose systematic optimization meshes, mechanical simulation and structural generation. It has the advantages of light weight structure, convenient construction, energy saving and environmental protection.
論文目次 摘 要 I
誌 謝 VI
目 錄 VII
圖目錄 X
第1章 緒論 1
1.1 研究背景與動機 1
1.1.1 健康舒適的建築環境 1
1.1.2 建築環境因素相關研究分佈 2
1.2 研究議題 3
1.2.1 空氣微粒與空間應對改善方法 3
1.2.2 半戶外空間的生態貢獻與危害 4
1.2.3 研究問題與設計實證案例 5
1.2.4 曲面的建築應用與展望 7
1.3 研究目標 8
1.3.1 曲面用於被動式顆粒物沉降 8
1.4 研究步驟與範疇 8
1.4.1 自然通風條件下的曲面設計方法 8
1.4.2 研究步驟與流程 9
第2章 研究定義與文獻回顧 10
2.1 空氣污染的定義 10
2.1.1 懸浮微粒 11
2.1.2 相關疾病 12
2.1.3 各國顆粒物污染準則 13
2.1.4 建築對空氣顆粒物的現有應對方法 15
2.2 自適性建築應用 19
2.2.1 仿生學到仿生建築 19
2.2.2 自適性建築立面 19
2.2.3 自適性建築立面對不同環境因素的應用率 20
2.3 編織結構與曲面設計 20
2.3.1 編織結構的突破性 21
2.3.2 編織結構的建造經驗 22
2.3.3 編織結構的應用與展望 25
2.4 流體力學模擬 26
2.4.1 Fluent的求解步驟 26
2.5 小結 30
第3章 研究方法與流程 33
3.1 基地調查 33
3.1.1 基地選擇 33
3.1.2 大環境風向 34
3.1.3 基地環境分析 35
3.1.4 基地進風速度實測 37
3.2 模型繪製 37
3.2.1 創建空氣量體與緩衝空間 37
3.2.2 進出風面與材質面分割 39
3.3 模擬分析 40
3.3.1 網格劃分設定 41
3.3.2 物理模型選擇 41
3.3.3 材質設定 45
3.3.4 邊界條件設定 46
3.3.5 求解設定 47
3.4 模擬結果輸出與後處理 49
3.5 編織結構衍生設計 49
第4章 設計操作 51
4.1 基地選擇 51
4.2 基地現況模擬:S0 53
4.3 單層曲面設計 54
4.3.1 增設單層曲面於原中庭空間:S1-S6 54
4.3.2 DPM濃度結果分析:S1-S6 56
4.3.3 單層設計小結 61
4.4 雙層曲面設計 62
4.4.1 增設雙層曲面於原中庭空間:SS1-SS4 62
4.4.2 DPM濃度結果分析:SS1-SS4 64
4.4.3 雙層設計小結 67
第5章 模擬結果分析 68
5.1 RGB像素判別法 68
5.2 數值統計與分析 69
5.2.1 現況模型分析:S0 69
5.2.2 單元數值統計方法 70
5.2.3 通風量測算 72
第6章 編織結構的可行性試驗 76
6.1 自由曲面提取編織網格 76
6.2 編織結構生成 79
6.3 編織結構的建造便捷性 81
第7章 研究總結 82
7.1 設計建議 83
7.2 設計方法 84
7.3 後續研究 87
參考文獻 88
附錄 90
附錄一:設計方法操作示例 90
附錄二:模型照片 93
附錄二:展覽照片 100
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