Laminar flow in rough channels is receiving considerable attention recently due to its application in microfluidic devices. Developing a proper understanding of the fundamental effects of roughness in narrow channels is essential. In the present study, single-phase laminar flow of an incompressible fluid through narrow rectangular channels with structured roughness walls is investigated numerically using CFD software, FLUENT. The results for smooth channel geometries are first compared with the previously validated experimental data of Brackbill [1]. Triangular ribbed roughness structures, defined by pitch and height, are incorporated in the CFD model and the fully developed region is analyzed. Pressure drop results from CFD simulations are presented and the friction factor, f, is calculated for comparison with published experimental results of Brackbill and Kandlikar [2–4] and Brackbill [1]. The validated numerical scheme will be used in future work for the evaluation of the effect of different roughness features on laminar flow.
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ASME 2009 7th International Conference on Nanochannels, Microchannels, and Minichannels
June 22–24, 2009
Pohang, South Korea
Conference Sponsors:
- Nanotechnology Institute
ISBN:
978-0-7918-4349-9
PROCEEDINGS PAPER
Numerical Simulation of Single Phase Liquid Flow in Narrow Rectangular Channels With Structured Roughness Walls Available to Purchase
Rishabh R. Srivastava,
Rishabh R. Srivastava
Rochester Institute of Technology, Rochester, NY
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Nicholas M. Schneider,
Nicholas M. Schneider
Rochester Institute of Technology, Rochester, NY
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Satish G. Kandlikar
Satish G. Kandlikar
Rochester Institute of Technology, Rochester, NY
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Rishabh R. Srivastava
Rochester Institute of Technology, Rochester, NY
Nicholas M. Schneider
Rochester Institute of Technology, Rochester, NY
Satish G. Kandlikar
Rochester Institute of Technology, Rochester, NY
Paper No:
ICNMM2009-82255, pp. 689-695; 7 pages
Published Online:
September 21, 2010
Citation
Srivastava, RR, Schneider, NM, & Kandlikar, SG. "Numerical Simulation of Single Phase Liquid Flow in Narrow Rectangular Channels With Structured Roughness Walls." Proceedings of the ASME 2009 7th International Conference on Nanochannels, Microchannels, and Minichannels. ASME 2009 7th International Conference on Nanochannels, Microchannels and Minichannels. Pohang, South Korea. June 22–24, 2009. pp. 689-695. ASME. https://doi.org/10.1115/ICNMM2009-82255
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