naa a22 4500 510820778 CHVBK 20180411083530.0 cr unu---uuuuu 180411e20130401xx s 000 0 eng 10.1007/s11814-012-0233-9 doi (NATIONALLICENCE)springer-10.1007/s11814-012-0233-9 Viscous dissipation effect on heat transfer characteristics of mixed electromagnetic/pressure driven liquid flows inside micropumps [Elektronische Daten] [Mostafa Shojaeian, Seyyed Shojaee] This paper presents the effect of viscous dissipation on heat transfer characteristics of mixed electromagnetic/ pressure driven liquid slip flows inside parallel plate microchannels. Flow is governed by the Navier-Stokes equations subject to the imposition of electromagnetic field with the boundary condition appropriate to the slip flow regime. For isoflux walls, some closed form expressions for the local and bulk temperature profiles and the Nusselt number in terms of dimensionless slip length, Hartmann number and Brinkman number are given, while the viscous dissipation is also taken into account. Then the analytical solutions derived in this analysis are elaborated. It turns out that since the contribution of the viscous dissipation on the Nusselt number under the given circumstances, especially a stronger electromagnetic field, may reach to nearly 10%, therefore, the viscous heating should be taken into consideration. Otherwise, the heat transfer rate may be overestimated or underestimated depending on whether the fluid is being heated or cooled. Also, there are singularities in Nusselt number values, which move close together by including the viscous dissipation. Further, an increase in the Hartmann number increases the convection, which is especially reflected in smaller values of dimensionless slip length. Korean Institute of Chemical Engineers, Seoul, Korea, 2013 Microchannel nationallicence Liquid Slip Flow nationallicence Electromagnetic Field nationallicence Nusselt Number nationallicence Viscous Dissipation nationallicence Shojaeian Mostafa Mechatronics Engineering Program, Faculty of Engineering and Natural Sciences, Sabanci University, 34956, Tuzla, Istanbul, Turkey aut Shojaee Seyyed Department of Mechanical and Aerospace Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran aut Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/4(2013-04-01), 823-830 0256-1115 30:4<823 2013 30 11814 https://doi.org/10.1007/s11814-012-0233-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11814-012-0233-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shojaeian Mostafa Mechatronics Engineering Program, Faculty of Engineering and Natural Sciences, Sabanci University, 34956, Tuzla, Istanbul, Turkey aut NATIONALLICENCE 700 1- Shojaee Seyyed Department of Mechanical and Aerospace Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran aut NATIONALLICENCE 773 0- Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/4(2013-04-01), 823-830 0256-1115 30:4<823 2013 30 11814 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer