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

被引：11
|
作者：
Abu-Nada, Eiyad [1 ]
Oztop, Hakan F. [2 ]
Pop, Ioan [3 ]
机构：
[1] KUSTAR, Dept Mech Engn, Abu Dhabi, U Arab Emirates
[2] Firat Univ, Fac Technol, Dept Mech Engn, Elazig, Turkey
[3] Univ Babes Bolyai, Dept Math, Cluj Napoca 400084, Romania
来源：
HEAT AND MASS TRANSFER | 2016年 / 52卷 / 09期
关键词：
WATER-CUO NANOFLUID; NATURAL-CONVECTION; ENTROPY GENERATION; MIXED CONVECTION; CAVITY; TEMPERATURE; ENCLOSURES; SIZE;
D O I：
10.1007/s00231-015-1714-0
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
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 (10(3)-10(5)), 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.
引用
收藏
页码：1909 / 1921
页数：13
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