Abstract
This paper reports a numerical investigation the effect of inclination angle of the vertical face of a backward-facing step on the heat transfer performance utilizing Nanofluid for laminar flow. Al2O3 is the nanoparticle used in this investigation, and water is the base fluid. The finite volume technique is used to solve the momentum and energy equation in 2D backward facing step geometry with an expansion ration of 1.5. The effect of Re on Nu is investigated for the Reynolds numbers 40, 100 and 150 and for different volume fractions of the nanoparticles of 2%, 4% and 6% for all simulations. Nusselt number distribution at the bottom wall is computed. Pressure losses also reported for different Reynolds numbers and entropy is studied for a range of Reynolds numbers and for different volume fractions of Nanofluid. The results are validated with available literature. Four angles of inclination of the vertical step is investigated 90o,97.5o,105o and 115o. The effect of the inclination angle on the heat transfer showed that the heat transfer was enhanced with a decrease in the inclination angle.
| Original language | English |
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| Publication status | Published - 7 Sept 2015 |
| Event | UK Heat Transfer Conference - Edinburgh University Duration: 7 Sept 2015 → … http://www.see.ed.ac.uk/drupal/ukht/previous-conference/ |
Conference
| Conference | UK Heat Transfer Conference |
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| Period | 7/09/15 → … |
| Internet address |