Abstract
Abstract
Heat transfer enhancement of different nanofluid laminar flow over backward facing step is numerically studied in this paper. The expansion ratio is chosen according to the experimental setup suggested by Armaly H/h = 1.9432. The Reynolds number is taken in a range of 10 ≤ Re ≤ 400. The result showed a primary recirculation region developed after the sudden expansion before it starts to change to become fully developed flow downstream of the reattachment point. The length of the reattachment point increases as Reynolds number increases. The effect of the volume fraction has observed along the downstream wall for Al2O3 - water nanofluid. Moreover, the impact of the volume fraction on the thermal boundary layer and heat transfer is investigated.
Subject
General Physics and Astronomy
Cited by
8 articles.
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