Flow Visualization Around a Non - Circular Tube
Publish Year: 1385
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJE-19-2_008
تاریخ نمایه سازی: 20 اسفند 1400
Abstract:
The flow behavior around a cam shaped tube in cross flow has been investigated experimentally using flow visualization and pressure distribution measurement. The range of attack angle and Reynolds number based on an equivalent circular diameter are within ۰ ≤ α ≤ ۳۶۰˚ and ۲ x ۱۰۴ < Reeq < ۳.۴ x ۱۰۴, respectively. The pressure drag features are clarified in relation to the flow behavior around the tube. It is found that the highest pressure drag coefficient occurs at α = ۹۰˚ and ۲۷۰˚ over the whole range of Reynolds number. Results show that the pressure drag coefficient of the cam shaped tube is lower than that of a circular tube with the same surface area for more of the angles of attack.
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Authors
A.M. Lavasani
Mechanical Engineering, Islamic Azad University
A. Nouri Borujerdi
Mechanical Engineering, Sharif University of Technology