A systematic and accurate experimental investigation of friction factor in the transition region for single phase flow in mini- and micro-tubes has been performed for eight stainless steel tubes with diameters ranging from 2083 μm to 667 μm. The pressure drop measurements were carefully performed by paying particular attention to the sensitivity of the pressure-sensing diaphragms used in the pressure transducer. Experimental results indicated that the start and end of the transition region was influenced by varying the tube diameter. The friction factor profile was not significantly affected for the tube diameters between 2083 μm and 1372 μm. However, the influence of the tube diameter on the friction factor profile became noticeable as the diameter decreased from 1372 μm to 667 μm.
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ASME 2008 6th International Conference on Nanochannels, Microchannels, and Minichannels
June 23–25, 2008
Darmstadt, Germany
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-4834-5
PROCEEDINGS PAPER
An Experimental Study of Friction Factor in the Transition Region for Single Phase Flow in Mini- and Micro-Tubes
Afshin J. Ghajar,
Afshin J. Ghajar
Oklahoma State University, Stillwater, OK
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Rahul P. Rao,
Rahul P. Rao
Oklahoma State University, Stillwater, OK
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Wendell L. Cook,
Wendell L. Cook
Oklahoma State University, Stillwater, OK
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Clement C. Tang
Clement C. Tang
Oklahoma State University, Stillwater, OK
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Afshin J. Ghajar
Oklahoma State University, Stillwater, OK
Rahul P. Rao
Oklahoma State University, Stillwater, OK
Wendell L. Cook
Oklahoma State University, Stillwater, OK
Clement C. Tang
Oklahoma State University, Stillwater, OK
Paper No:
ICNMM2008-62281, pp. 249-257; 9 pages
Published Online:
June 11, 2009
Citation
Ghajar, AJ, Rao, RP, Cook, WL, & Tang, CC. "An Experimental Study of Friction Factor in the Transition Region for Single Phase Flow in Mini- and Micro-Tubes." Proceedings of the ASME 2008 6th International Conference on Nanochannels, Microchannels, and Minichannels. ASME 2008 6th International Conference on Nanochannels, Microchannels, and Minichannels. Darmstadt, Germany. June 23–25, 2008. pp. 249-257. ASME. https://doi.org/10.1115/ICNMM2008-62281
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