Abonnement à la biblothèque: Guest
Portail numérique Bibliothèque numérique eBooks Revues Références et comptes rendus Collections
International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.9

ISSN Imprimer: 2152-5102
ISSN En ligne: 2152-5110

Volumes:
Volume 47, 2020 Volume 46, 2019 Volume 45, 2018 Volume 44, 2017 Volume 43, 2016 Volume 42, 2015 Volume 41, 2014 Volume 40, 2013 Volume 39, 2012 Volume 38, 2011 Volume 37, 2010 Volume 36, 2009 Volume 35, 2008 Volume 34, 2007 Volume 33, 2006 Volume 32, 2005 Volume 31, 2004 Volume 30, 2003 Volume 29, 2002 Volume 28, 2001 Volume 27, 2000 Volume 26, 1999 Volume 25, 1998 Volume 24, 1997 Volume 23, 1996 Volume 22, 1995

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v36.i5.60
pages 460-472

Squeeze-Flow Electroosmotic Pumping Between Charged Parallel Plates

Siddharth Talapatra
Department of Mechanical Engineering, Indian Institute of Technology, Kharagpur-721302, India; Heat Transfer Research, Inc., 165 Research Drive, Navasota, TX 77868 USA
Suman Chakraborty
Department of Mechanical Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India; Advanced Technology Development Centre, Indian Institute of Technology Kharagpur 721302, Kharagpur, India

RÉSUMÉ

In the present work, the squeezing flow between two charged parallel plates is theoretically investigated, with a provision of accounting for the electric double layer overlap effects. The electroviscous effects arising from the distortion of the electric double layer flow field are investigated in detail, for different strengths of the imposed plate motion. It is revealed that there can be a significant deviation between the predictions from the present model and those obtained by employing a classical Poisson-Boltzmann equation based model. This discrepancy can be attributed to some of the over-simplified assumptions associated with the standard models that might only remain valid for large separation distances between the two plates. Many of these simplified assumptions are found to hold inappropriate in case the squeezing flow occurs in such a narrow gap that the instantaneous liquid layer thickness becomes of the same order or less than the order of the characteristic electric double layer thickness. In such cases, there is likely to be a deficit of counterions within the bulk liquid due to an excess accumulation of those in the electrical double layer. On the other hand, there may occur a surplus of coions in the bulk liquid region due to a rejection of those in the electrical double layer. As a consequence of this presence of excess net charges in the bulk liquid region, strong electro-hydrodynamic interactions are likely to occur between the squeezing motion and the electroosmotic transport, which cannot be accurately captured by the classical theory.


Articles with similar content:

Anomalous Transparency of a Thin Metal Plate Carrying a Strong Transport Current
Telecommunications and Radio Engineering, Vol.57, 2002, issue 6-7
V. A. Yampol'skii, O. I. Lyubimov, S.A. Derevyanko
MOLECULAR DYNAMICS STUDY ON INTERFACE FORCE BALANCE OF NANOBUBBLES
International Heat Transfer Conference 13, Vol.0, 2006, issue
Gyoko Nagayama, Takaharu Tsuruta
EVAPORATION KINETICS OF LASER MODULATED PENDANT NANOCOLLOIDAL DROPLET
Proceedings of the 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2017), Vol.0, 2017, issue
Sarit Kumar Das, A R Harikrishnan, Purbarun Dhar, Sateesh Gedupudi
TEST-CASE NO 21: GAS BUBBLE BURSTING AT A FREE SURFACE, WITH JET FORMATION (PN-PE)
Multiphase Science and Technology, Vol.16, 2004, issue 1-3
S.-C. Georgescu, E. Canot, Stephane Vincent
Effect of Velocity and Evaporation on Non-IsoThermal Meniscus in a Capillary
International Heat Transfer Conference 15, Vol.31, 2014, issue
Adel M. Benselama, Yves Bertin, Antoine Voirand