Abstract
This paper presents a numerical study of Enhanced Thermal Pumping (ETP) via oscillatory pipe flow. Time‐dependent velocity profiles, Lagrangian and tidal displacements at various Wormersley numbers are obtained. The enhanced axial heat flux for different tidal displacements are calculated. The tuning effect in axial heat flow is examined and the results indicate good agreement with analytic predictions. The numerical studies show that the axial heat transferred via ETP is comparable with the convective axial heat transfer in a steady flow, however, it has no accompanying net convective mass exchange between the pipe ends. This feature makes ETP potentially a very effective tool for those problems where a large amount of heat must be transported by a liquid without an accompanying convective mass exchange.
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