Detailed heat transfer distributions and pressure drop measurements for a rotating parallelogram channel with radially outward flow

Shyy-Woei Chang, T. M. Liou, T. H. Lee

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

This experimental study examines the pressure drop coefficients (f) and the detailed Nusselt numbers (Nu) distributions over two opposite leading and trailing walls roughened by 450 ribs for a rotating parallelogram channel with radially outward flow. For the first time the isolated effects of Reynolds (Re), rotation (Ro) and buoyancy (Bu) numbers on local and area averaged Nusselt numbers (Nu and Nu ) measured from the infrared thermography method were successfully examined at the parametric conditions of 5000≤Re≤15000, 0≤Ro≤0.3 and 0.001≤Bu≤0.23 for the single-pass parallelogram channel. A set of selected heat transfer data illustrates the Coriolis and rotating-buoyancy effects on the detailed Nu distributions and the area-averaged heat transfer performances of the rotating parallelogram channel. With the consideration of the f data generated at the isothermal conditions, the thermal performance factors (η) for this radially rotating channel were evaluated. The Nusselt numbers obtained from the leading and trailing walls of the rotating test channel fall in the respective ranges of 0.78-1.34 and 1.09-1.38 times of the stationary levels; while the η factors are in the range of 0.979-1.575 for the present test conditions.

原文English
主出版物標題Heat Transfer
發行者American Society of Mechanical Engineers (ASME)
頁面1217-1226
頁數10
版本PARTS A AND B
ISBN(列印)9780791854655
DOIs
出版狀態Published - 2011 一月 1
事件ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition, GT2011 - Vancouver, BC, Canada
持續時間: 2011 六月 62011 六月 10

出版系列

名字Proceedings of the ASME Turbo Expo
號碼PARTS A AND B
5

Other

OtherASME 2011 Turbo Expo: Turbine Technical Conference and Exposition, GT2011
國家/地區Canada
城市Vancouver, BC
期間11-06-0611-06-10

All Science Journal Classification (ASJC) codes

  • 工程 (全部)

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