跳到主要內容區

04097027-Abstract

Number:

04097027

Download

PDF

Name:

Sheng-Chung Tzeng

Titles:

Professor

Author:

Sheng-Chung Tzeng

Paper name:

The U-shaped channel of the central partition with a plurality of perforations channel heat transfer characteristics

Name of activity:

Transport phenomena in 2008 and its application seminars

Keywords:The transient liquid crystal, U-type (180-degree turn) channel, forced convection, perforation channel.

Abstract:本研究以暫態液晶實驗法完成U型(180度轉彎)通道於強制對流下之熱傳系數細部測定,U行通到包刮中央隔板不穿孔、穿孔孔徑5mm及15mm等三種構型,相關並動參數包刮雷諾數(Re)與穿孔孔徑(d) ,實踐結果指出d=15mm穿孔之構型在第一流道下段之後能有較平順之紐塞數分佈,而在低雷諾數時(Re=3932-7864) ,有穿孔者之平均紐塞數比吳穿孔者高約18%-36%,但在高雷諾數時(Re=9175-13107) ,三種測試構型之平均紐塞數值大致相同,而再Re=14417時,d=15mm穿孔之平均紐塞數低於其他兩種構型。

Back

瀏覽數:
登入成功