Browse > Article
http://dx.doi.org/10.3795/KSME-B.2010.34.5.539

Numerical Investigation of Effect of Surface Roughness in a Microchannel  

Shin, Myung-Seob (School of Mechanical Engineering, Hanyang Univ.)
Byun, Sung-Jun (School of Mechanical Engineering, Hanyang Univ.)
Yoon, Joon-Yong (Division of Mechanical and Management Engineering, Hanyang Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.34, no.5, 2010 , pp. 539-546 More about this Journal
Abstract
In this paper, lattice Boltzmann method(LBM) results for a laminar flow in a microchannel with rough surface are presented. The surface roughness is modeled as an array of rectangular modules placed on the top and bottom surface of a parallel-plate channel. The effects of relative surface roughness, roughness distribution, and roughness size are presented in terms of the Poiseuille number. The roughness distribution characterized by the ratio of the roughness height to the spacing between the modules has a negligible effect on the flow and friction factors. Finally, a significant increase in the Poiseuille number is observed when the surface roughness is considered, and the effects of roughness on the microflow field mainly depend on the surface roughness.
Keywords
Microchannel Flow; Surface Roughness; Friction Factor; Lattice Boltzmann Method;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 1
연도 인용수 순위
1 Yoon, J.Y., Han, G.S. and Byun, S.J., 2005, “Optimization of Passive Mixer for Enhanced Mixing in a Micro-channel by Using Lattice Boltzmann Method,” Trans. of the KSME(A), Vol. 29, No. 5, pp.707-715.
2 Rosa, P., Karayiannis, T.G. and Collins, M.W, 2009, “Single-Phase Heat Transfer in Microchannels : The Importance of Scaling Effects,” Applied Thermal Engineering, Vol. 29, No. 17-18, pp. 3447-3468.   DOI   ScienceOn
3 Papautsky, I., Brazzle, J., Ameel, T. and Frazier., A. B., 1998, “Laminar Fluid Behavior in Microchannels Using Micropolar Fluid Theory,” Sensors and Actuators, Vol. 73, No. 1-2, pp. 101-108.
4 Wu, P. and Little, W.A, 1983, “Measurement of Friction Factors for the Flow of Gases in Very Fine Channels Used for Microminiature Joule–Thomson Refrigerators,” Cryogenics, Vol. 23, No. 5, pp. 273-277.   DOI   ScienceOn
5 Wu, P. and Little, W.A, 1984, “Measurement of the Heat Transfer Characteristics of Gas Flow in Fine Channel Heat Exchangers Used for Microminiature Refrigerators,” Cryogenics, Vol. 24, No. 8, pp. 415-419.   DOI   ScienceOn
6 Wilding, P., Shoffner, M.A. and Kircka, L.J., 1994, “Manipulation and Flow of Biological Fluids in Straight Channels Micromachined in Silicon,” Clinical Chemistry, Vol. 40, pp. 43-47.
7 Mala, G.M. and Li, D., 1999, “Flow Characteristics of Water in Microtubes,” International Journal of Heat and Fluid Flow, Vol.20, No.2, pp. 142-148.   DOI   ScienceOn
8 Hu, Y., Werner, C. and Li, D., 2003, "Influence of Three-Dimensional Roughness on Pressure-Driven Flow Through Microchannels," Trans. ASME Journal of Fluids Engineering, Vol. 125, No. 5, pp. 871-879.   DOI   ScienceOn
9 Sun, H. and Faghri, M., 2003, "Effect of Surface Roughness on Nitrogen flow in a Microchannel Using the Direct Simulation Monte Carlo Method," Numerical Heat Transfer - Part A, Vol. 43, No. 1, pp. 1-8.   DOI   ScienceOn
10 Gad-el-Hak, M., 1999 "The Fluid Mechanics of Microdevices : The Freeman Scholar Lecture," Trans. ASME Journal of Fluids Engineering, Vol. 121, No. 1, pp. 5-33.   DOI   ScienceOn
11 Chen, S. and Doolen, G.D., 1998, “Lattice Boltzmann Method for Fluid Flows," Annual Review of Fluid Mechanics, Vol. 30, pp.329-364.   DOI   ScienceOn
12 Bhatnagar, P.L, Gross, E.P. and Krook, M., 1954, "A Model for Collision Processes in Gases. I : Small Amplitude Processes in Charged and Neutral One-Component System," Physical Review, Vol. 94, No. 5, pp. 511-525.   DOI
13 Qian, Y.H., d'Humieres, D. and Lallemand, P., 1992, "Lattice BGK Models for Navier-Stokes Equation," Europhysics Letters, Vol. 17, No. 6, pp. 479-484.   DOI   ScienceOn
14 Li, Z., Du, D. and Guo, Z., 2003, "Experimental Study on Flow Characteristics of Liquid in Circular Microtubes," Microscale Thermophysical Engineering, Vol. 7, No. 3, pp. 253-265.   DOI   ScienceOn
15 Succi, S., 2001, The Lattice Boltzmann Equation for Fluid Dynamics and Beyond, Clarendon Press Oxford, New York, pp. 77-96.
16 Morini, G.L, 2004, “Single-Phase Convective Heat Transfer in Microchannels : A Review of Experimental Results,” International Journal of Thermal Sciences, Vol. 43, No. 7, pp. 631-651.   DOI   ScienceOn