由於人口密度增加，在有限的居住環境下，住的生活空間相對的減少，人們為了在追求較舒適的居家生活，部分家庭將熱水器安裝於前、後陽台或室內，且因宵小橫行並將陽台裝設防盜窗，形成一密閉空間，致常因熱水器燃燒不完全產生一氧化碳及室內通風不良的狀況下，發生室內人員中毒死亡的悲劇。本研究係利用廣為流體力學及數值研究（CFD）專家所使用的套裝軟體PHOENICS，建立一套數值模型來模擬一般典型住房矩形區間中，有CO污染源時，在各參數的變化下之流場及濃度場的暫態結構，以探討矩形區間內點污染源污染物之擴散情形，以取代實地、實物的實驗方式取得實驗數據，節省大量人力、物力、時間及金錢。其結果希望能有效地運用於實物模擬上，提供空調系統、排煙系統、清淨設備等設計人員設計時之參考，以改善通風效率，減少意外事件發生，進而解決室內環境品質問題，使得人們有乾淨的生活空間，提升人類的生活品質。

Owing to the increasing of population, the living space is decreased comparatively under the limit environment. To obtain the larger indoor space, people often remodel their outdoor area, and then, not intentionally, isolate the bathing water heater indoors. This situation always caused people poisoned by CO, because of the bad ventilation in house and the incomplete burning of the gas, especially in winter. This study used the software Phoenics, which was well applied by CFD experts, to establish a numerical model for simulating the flow and CO concentration field in a typical rectangular housing area. This research could be applied effectively in the real housing, offer the useful information in designing the air condition, ventilation, and air cleaning systems. Other uses of the model are to increase the overall efficiency of ventilation, and decrease the accident and improve the quality of living.

中文摘要 i
英文摘要 ii
誌謝 iii
目錄 iv
表目錄 v
圖目錄 vii
符號說明 x
第一章 緒論 1-1
1.1 簡介 1-1
1.2 研究目的 1-1
1.3 研究內容 1-2
1.4 文獻回顧 1-4
第二章 數學模型 2-1
2.1 物理模型(A) 2-1
物理模型(B) 2-4
2.2 基本理論與假設 2-7
2.3 紊流數學模式 2-7
2.4 統御方程式 2-8
第三章 數值模擬方法 3-1
3.1 電腦數值模擬 3-1
3.2 格點分佈 3-2
3.3 收斂值之認定 3-5
3.4 污染物移除效率收斂值之認定 3-5
第四章 結果與討論 4-1
4.1 對文獻模擬之驗證 4-1
4.2 物理模型 (A) 4-2
4.3 物理模型 (B) 4-12
4.4 綜合討論 4-24
第五章 結論 5-1
參考文獻 R-1
作者簡歷 A-1

【1】K. Hanjalic, S. Vasic, "Computation of turbulent natural convection in rectangular enclosures with an algebraic flux model", Int. J. of Heat and Mass Transfer Vol.36, No, 14, pp. 3603-3624 (1993)
【2】D.E, Cormack, L.G, Leal., and Imberger, "Natural Convection in a shallow Cavity with Differentially HeatedEnds walls.Part l. Asymptotic Theory", Journal of Fluid Mechanics, Vol.65, pp.209-229 (1974)
【3】林誠興，陳漢興，王立文，"低展弦比密閉矩形區域中熱對流現象之數值分析"，輸送現象與其應用專題研討會，1993。
【4】林誠興，王立文，陳漢興，"具傾斜角度低展弦比之密閉矩形空間熱對流現象之數值模擬分析"，中華民國太陽能第13屆研討會論文集，pp. 51, 1993。
【5】林誠興，陳漢興，蕭堅彬，"具隔版效應之傾斜密閉區間內自然對流現象數值模擬分析"，第18屆全國力學會議，1994。
【6】林誠興，林柏峰，"密閉區間內高雷利數自然對流之數值模擬分析"，第十九屆力學會議。
【7】.林誠興，林柏峰，"具隔板效應密閉區間內高雷利數自然對流之數值模擬分析"，輸送現象與其應用專題研討會，pp69~74，1995。
【8】林誠興，夏繼綱，"不連續隔板之密閉區間內自然對流之探討"，輸送現象與其應用專題研討會，pp.305-310, 1996。
【9】林誠興，夏繼綱，張旻光，"不連續隔板之區間內自然對流對濃度場分佈影響之分析"，第四屆三軍官校基礎學術研討會，pp. 879-888, 民國86年五月。
【10】Q. Chen, A. Moser, A. Huber, "Prediction Of Buoyant, Turbulent Flow Bya Low-Reynolds-Number k-ε Model", ASHRAE Trans. ,Vol. 96, part 1, 1990.
【11】S. A. M. Said, M. A. Habib, M. A. R. Khan, "Turbulent Natural Convection Flow in Partitioned Enclosure", Computer & Fluids Vol. 26, No. 6, pp. 547-563, 1997.
【12】F. Ladeinde and M. D. Nearon, "CFD Applications In the HVAC&R Industry", ASHARE Trans. , Jan. pp. 44-48, 1997.
【13】Q. Chen, P. Suter, A.Moser, "Influence Of Air Supply Parameters On Indoor Air Diffusion", Building and Envirement, Vol. 26, No. 4, pp. 417-431, 1991.
【14】M. J. Clifford, P. J. Everitt, R. Clarke, S. B. Riffat, "Using Computational Fluid Dynamics as a Design Tool for Naturally Ventilated Buildings", Building and Environment, Vol. 32, No. 4, pp. 305-312, 1997.
【15】J. L. Lang and A. Bejan and R. Anderson, "Efficiency of transient contaminant removal from a slot ventilated enclosure", Int. J. Heat Mass Transfer. Vol. 34, No. 10 pp. 2603-2615, 1991.
【16】J. L. Lang and A. Bejan and R. Anderson, "Removal of contaminant generated by a discrete source in a slot ventilated enclosure", Int. J. Heat Mass Transfer. Vol. 35, No. 5 pp. 1169-1180, 1992.
【17】Q. Chen, Alfred, Moser, "Simulation of a Multiple - NozzleDiffuser" Air Movement and Ventilation control within buildings 12th Conference, Vol.2, pp 1-13 (1991).
【18】J.W.Weather、J.D.Spiter,"A Comparative Study of Room Airflow : Numerical Prediction Using Computation Fluid Dynamics and Full-Scale Experimental Measurements", ASHRAE Transactions : Research , pp144~157 (1994)
【19】趙中興，"計算流體力學模擬軟體應用在室內空氣流動、空氣品質、溫度調節與有毒氣體擴散等分析上的發展與前景(下)"，中國冷凍空調雜誌，Vol.8，pp95~105 (1993).
【20】Q.Chen，Z.Jiang，"Significant Questions In Predicting Room Air Motion"，ASHRAE，pp. 929-939 (1992).
【21】Q. Chen, J. vanderkooi, "Accuuacy-A Program For Combined Problems Of EnergyAnalysis，Indoor Airflow，and Air Quality", ASHRAE Transactions, V.94, part 2, pp. 196-214 (1988).
【22】D. J. Bergstrom, "Numerical Prediction Of A Turbulent Fountain In A Room", ASHRAE Transactions：Symposia, pp. 669-676 (1994).
【23】廖成偉，田大青，崔永懋，白琦，李永成"冰箱強制熱對流流場數值模擬研究"，中國機械工程學會第十一屆學術研討會，Vol.1，pp661~667 (1994).
【24】胡石歐"冷凍庫氣流模擬研究"，中國冷凍空調雜誌，Vol.14，pp95~102 (1994).
【25】韓親民，林誠興，"臥室冷房舒適感之電腦輔助設計"，技術與教學研討會，1995
【26】韓親民，林誠興，"空調區間空氣流動數值模擬分析"，輸送現象與其應用專題研討會，1995
【27】林誠興，戴上堉，"矩形空間浮力對噴流效應之數值分析"，輸送現象與其應用專題研討會，pp. 47-52, 1996。
【28】林誠興，戴上堉，"空調區間熱對流對冷氣噴流之影響"，第四屆三軍官校基礎學術研討會，pp. 889-898, 民國86年。
【29】林誠興，夏繼綱，張旻光，莊榮晉，"矩形區間通風室內污染物移除之分析"，輸送現象與其應用專題研討會，pp. 213-218, 1997。
【30】W. Lu, A. T. Howarth, A. P. Jeary, "Prediction of Airflow and Temperature Field in a Room With Convective Heat Source", Building and Environment, Vol. 32, No. 6, pp. 541-550, 1997.
【31】A. J. Baker, R. M. Kelso, E. B. Gordon, S. Roy, E. G. Schaub, "Computational Fluid Dynamics: A Two- Edged Sword", ASHARE Trans. , Aug. pp. 51-58, 1997.
【32】Q. Chen, A. Moser and P. Suter, "A Numerical Study of Indoor Air Quality and Thermal Comfort Under Six Kinds of Air Diffusion", ASHARE Trans. , pp. 203-205, 1991.
【33】W. K. Chow, "Application of Computational Fluid Dynamics in Buildings Services Engineering", Building and Environment, Vol. 31, No. 5, pp. 425-436, 1996.