Bulletin of the American Physical Society
71st Annual Meeting of the APS Division of Fluid Dynamics
Volume 63, Number 13
Sunday–Tuesday, November 18–20, 2018; Atlanta, Georgia
Session F33: Heat Transfer and Forced Convection
8:00 AM–10:10 AM,
Monday, November 19, 2018
Georgia World Congress Center
Room: B405
Chair: Stephan Weiss, Max Planck Institute
Abstract ID: BAPS.2018.DFD.F33.5
Abstract: F33.00005 : Convective heat transfer in partially porous channel flow
8:52 AM–9:05 AM
Presenter:
Shilpa Vijay
(University of Southern California)
Authors:
Shilpa Vijay
(University of Southern California)
Mitul Luhar
(University of Southern California)
While convective heat transfer in channels completely filled with metal foams has been studied extensively, turbulent heat transfer in channels that are partially filled with porous foams is less well understood. Previous direct numerical simulations for partially-porous channel flow indicate that large vortex structures enhance turbulent heat transfer at the porous medium-unobstructed flow interface. This project aims to experimentally investigate this interfacial thermal transport. Commercially available Aluminum foams with porosity > 90% are attached to a heater and placed into a forced convection arrangement adjacent to an obstructed channel of equal height. With water as the fluid, pressure drop measurements have been made across the porous section to quantify friction factors for bulk Reynolds numbers ranging from 890-4580. A two-component Laser Doppler Velocimeter (LDV) is being used to generate velocity profiles at different sections across the flow and point temperature measurements are being made along the channel to estimate the Nusselt number. Ultimately, this information will be used to evaluate heat transfer efficiency with respect to pumping power requirements.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DFD.F33.5
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