JOULE HEATING EFFECTS ON ELECTROOSMOTIC FLOW THROUGH A MICROCHANNEL WITH TRAPEZOIDAL CROSS-SECTION

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AFSARI M.M.; MIRBOZORGI S.A.

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Journal: Modares Mechanical Engineering Year:2013 | Volume:12 | Issue:6 Page(s): 136-146

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Title

JOULE HEATING EFFECTS ON ELECTROOSMOTIC FLOW THROUGH A MICROCHANNEL WITH TRAPEZOIDAL CROSS-SECTION

Author(s)

AFSARI M.M. | MIRBOZORGI S.A. | Issue Writer Certificate

Keywords

ELECTRO OSMOTIC FLOWQ2

JOULE HEATINGQ2

TRAPEZOIDAL MICRO CHANNELQ2

CONSTANT WALL TEMPERATUREQ2

Abstract

Flow analysis in the micro channels has recently accelerated dramatically. In this paper, numerical investigation of JOULE HEATING effects on the ELECTRO OSMOTIC FLOW through a micro channel with the trapezoidal cross- section and CONSTANT WALL TEMPERATURE have been presented. The energy equation for the temperature distribution, Navier–Stokes equation for the velocity distribution and a Poisson equation for the electric potential distribution have been solved by using the finite-volume method in a system curvilinear coordinates. Thermo physical properties such as the dynamic viscosity and electric conductivity vary with temperature. Results show that by increasing the Joule number, the temperature, velocity and mass flow rate increase with constant EDL number. Without considering the JOULE HEATING effects, the increments of EDL number causes in the mass flow rate to increase, but with considering the JOULE HEATING effects, the increasing of mass flow rate continues until EDL number 15 and after that the flow rate decreases. On the other hand, when the cross-section is reduced by the increasing aspect ratio, the joule number remains constant while the mean temperature decreases.

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APA: Copy

AFSARI, M.M., & MIRBOZORGI, S.A.. (2013). JOULE HEATING EFFECTS ON ELECTROOSMOTIC FLOW THROUGH A MICROCHANNEL WITH TRAPEZOIDAL CROSS-SECTION. MODARES MECHANICAL ENGINEERING, 12(6), 136-146. SID. https://sid.ir/paper/178589/en

Vancouver: Copy

AFSARI M.M., MIRBOZORGI S.A.. JOULE HEATING EFFECTS ON ELECTROOSMOTIC FLOW THROUGH A MICROCHANNEL WITH TRAPEZOIDAL CROSS-SECTION. MODARES MECHANICAL ENGINEERING[Internet]. 2013;12(6):136-146. Available from: https://sid.ir/paper/178589/en

IEEE: Copy

M.M. AFSARI, and S.A. MIRBOZORGI, “JOULE HEATING EFFECTS ON ELECTROOSMOTIC FLOW THROUGH A MICROCHANNEL WITH TRAPEZOIDAL CROSS-SECTION,” MODARES MECHANICAL ENGINEERING, vol. 12, no. 6, pp. 136–146, 2013, [Online]. Available: https://sid.ir/paper/178589/en

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