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首頁> 外文學(xué)位 >Experimental Investigation of the Discharge Coefficient and Impingement Heat Transfer Characteristics of a Single Jet in Cross Flow.
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Experimental Investigation of the Discharge Coefficient and Impingement Heat Transfer Characteristics of a Single Jet in Cross Flow.

機譯：橫流中單噴流排放系數(shù)和碰撞傳熱特性的實驗研究。

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摘要

This experimentation investigates the local heat transfer characteristics of an impinging jet with the effects of cross flow. The jet is formed by a single round hole with a diameter of 0.25 inches, sharp edges and a length to diameter ratio of 4. For one combination of impingement plate spacing and cross flow to jet flow mass velocity ratio, detailed photographs of a sheet of liquid crystal were taken. These photographs were then used to create a Nusselt number contour plot. Observations are made regarding the comparison of the Nusselt number contour plots with and without cross flow. Comparisons are also made to data in open literature citing the degradation of the average Nusselt number with cross flow to that without cross flow.;While the main focus of this study was the heat transfer of an impinging jet, a large amount of discharge coefficient data was also gathered for a single, sharp edged, round hole in the presence of cross flow. It compared very well to other investigator's data and a correlation relating the discharge coefficient to the mass velocity ratio is reported.
機譯：該實驗研究了具有橫流影響的撞擊射流的局部傳熱特性。射流是由一個直徑為0.25英寸，尖銳邊緣且長徑比為4的圓孔形成的。對于沖擊板間距和橫流與射流質(zhì)量速度比的一種組合，請查看一張液晶。這些照片然后用于創(chuàng)建Nusselt輪廓圖。觀察了有無交叉流的努塞爾數(shù)等值線圖的比較。還對公開文獻(xiàn)中的數(shù)據(jù)進行了比較，并列舉了橫流和不橫流的平均努塞爾特數(shù)的降低。雖然本研究的主要重點是撞擊射流的傳熱，但大量的排放系數(shù)數(shù)據(jù)在有橫流的情況下，也收集了一個尖銳的圓形邊緣孔。它與其他研究者的數(shù)據(jù)進行了很好的比較，并報告了排放系數(shù)與質(zhì)速比之間的相關(guān)性。

著錄項

  • 作者

    Roberts, Brian.;

  • 作者單位

    Northeastern University.;

  • 授予單位 Northeastern University.;
  • 學(xué)科 Engineering Aerospace.;Engineering Mechanical.
  • 學(xué)位 M.S.
  • 年度 2012
  • 頁碼 78 p.
  • 總頁數(shù) 78
  • 原文格式 PDF
  • 正文語種 eng
  • 中圖分類
  • 關(guān)鍵詞

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