English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 49633/84879 (58%)
造訪人次 : 7695127      線上人數 : 62
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋
    請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/38312


    題名: 風扇流中矩形板渦流產生器對流場結構及熱傳特性探討
    其他題名: Triangular-plate Turbulator Effects on Near-Wall Flow Characteristics and Heat Transfer in Fan Flows
    作者: 陳增源;Chen, T. Y.;孫明政;Suen;M. J.;王榆鈞;Wang, Y. J.;林銘宏;Lin, M. H.
    貢獻者: 淡江大學航空太空工程學系
    關鍵詞: 風扇流;擾動器;渦流;熱傳遞;擾流動能;Fan Flow;Turbulator;Vortex;Heat Transfer;Turbelent Kinetic Energy
    日期: 2002-12
    上傳時間: 2010-01-11 15:03:47 (UTC+8)
    摘要: 本實驗探討風扇流中,分別以45°及90°三角形板渦流產生器置於管道底部對流場結構及熱傳特性影響,並探討流場結構及熱傳特性之關聯。測試管道底部安裝八塊加熱板,並以LDV量測管道斷面及靠近加熱板面三軸方向的平均速度及擾動速度,並藉以獲得壁面邊界層之軸向渦流、擾動動能、平均速度。而加熱板面之溫度由熱電偶絲量測,藉以獲得其Stanton numbers。實驗結果顯示在風扇流中加裝擋板會增加其熱傳效益並且增加在壁面的軸向渦流、擾動動能及軸向平均速度,其中擾動動能在熱傳效益中扮演著重要的角色。
    The near-wall flow characteristics and heat transfer in fan flows with and without triangular-plate turbulator, 45.degree. and 90.degree. angle of attack, mounted on a duct wall were experimentally investigated. Eight heated plates, placed along the bottom wall of the duct, were used as the heat transfer surfaces. The studies included three-component mean and fluctuating velocity measurements using laser Doppler velocimetry. Near-wall axial vorticities, turbulent kinetic energy and axial mean velocities were obtained from the measured velocity data. The temperatures on the heat transfer surfaces were measured using thermocouples to obtain the Stanton numbers. Results show that the triangular-plate turbulators in fan flows had the effect to cause the increases in the axial mean velocity, axial vorticity and turbulent kinetic energy, and to augment the heat transfer. The turbulent kinetic energy played the most important role in the heat transfer distribution.
    關聯: 中華民國燃料學會第十三屆學術研討會論文集,頁N.A.(CD)
    顯示於類別:[航空太空工程學系暨研究所] 會議論文

    文件中的檔案:

    沒有與此文件相關的檔案.

    在機構典藏中所有的資料項目都受到原著作權保護.

    TAIR相關文章

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回饋