Please use this identifier to cite or link to this item:
Title: Analytical and numerical investigations of the effects of microchannel aspect ratio on velocity profile and friction factor
Authors: Kashaninejad, Navid
Chan, Weng Kong
Nguyen, Nam-Trung
Issue Date: 2012
Source: Kashaninejad, N., Chan, W. K., & Nguyen, N.-T. (2012). Analytical and Numerical Investigations of the Effects of Microchannel Aspect Ratio on Velocity Profile and Friction Factor. The 4th International Conference on Computational Methods (ICCM2012).
Abstract: This study presents a new form of velocity distribution in laminar liquid flow in rectangular microchannels using the eigenfunction expansion technique. Darcy friction factor and Poiseuille number are also obtained analytically. Due to the symmetry of the solutions, the effects of changing the aspect ratio from 0 to ∞ are also discussed. Using finite element method (FEM), the obtained analytical results are further compared with the 3D numerical simulations for the rectangular microchannels with different range of aspect ratio and pressure gradient, and excellent agreements were found. These findings provide additional insights in interpreting the results of the pressure driven flows in finite aspect ratio microchannels, in which very precise comparison with the macroscale theory is crucial.
Rights: © The 4th International Conference on Computational Methods (ICCM2012).
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MAE Conference Papers

Google ScholarTM


Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.