Effects of surface waviness on heat and fluid flow in a nanofluid filled closed space with partial heating

Eiyad Abu-Nada, Hakan F. Oztop, Ioan Pop

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

The current computational study focused on the effects of surface waviness on heat and fluid flow in a partially heated cavity filled with a nanofluid. The cavity has a partial heater and a wavy wall which is kept cooled isothermally. The current study investigated the effects of the heat and fluid flow in the cavity due to the cooled wall waviness. The study covered a wide range of Rayleigh numbers (103–105), nanofluid volume fraction (0–9 %), surface waviness ratio, non-dimensional length of the heater (0.25–0.75) and non-dimensional location of the heater (0.25–0.75). It is found that the location and the length of the heater are significant parameters on heat and fluid flow. However, the cooled wall surface waviness does not influence the heat transfer substantially.

Original languageBritish English
Pages (from-to)1909-1921
Number of pages13
JournalHeat and Mass Transfer/Waerme- und Stoffuebertragung
Volume52
Issue number9
DOIs
StatePublished - 1 Sep 2016

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