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題 名 | Airflow Characteristics of Plane Wall Jet Diffused into a Forced Ventilated Enclosure under Isothermal Condition=等溫狀態強制通風空間壁噴流之空氣流特徵 |
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作 者 | 喻新; | 書刊名 | 農業工程學報 |
卷 期 | 47:2 2001.06[民90.06] |
頁 次 | 頁64-73 |
分類號 | 440.137 |
關鍵詞 | 通風; 空氣流; 壁噴流; 等溫狀態; Ventilation; Airflow; Plane wall jet; Isothermal condition; |
語 文 | 英文(English) |
中文摘要 | 通風系統常利用條狀天花板入口方式控制室內環境,為瞭解此種壁噴流之流場特 徵,本研究應用模型試驗以驗證其噴流表現。由試驗之結果得知最大流速之衰減、最大流速 位置、流速分佈剖面以及流場擴張均與前人之分析結果相符。室內侷限氣流型態亦可由氣流 射程之計算以及氣流相對牆面之影響而估計。上述實驗與理論分析結果相符之氣流特徵將有 助於推測等溫壁噴流在侷限空間之表現方式。未來在動物佔據區之噴流特徵,以及非等溫狀 態之侷限壁噴流特徵均是值得研究的重點。 |
英文摘要 | Ventilation controlling indoor environment depends on air-jet diffused from a ceiling slot into a confined enclosure. The characteristics of plane wall jet were investigated by scale-model study to recognize the performance of air-jet. The maximum airspeed decay, the maximum airspeed position, the velocity profiles, and the spread of air-jet agreed with the literature analytical results. The airflow pattern of confined air-jet was predicted by using the jet throw calculation and the effect of opposite wall. These agreements of air-jet characteristics are helpful to predict the performance of isothermal plane wall jet diffused into a confined enclosure. The air-jet characteristics of animal occupied zone in confined enclosure and of the air-jet under non-isothermal condition are important subjects for future study. |
本系統中英文摘要資訊取自各篇刊載內容。