图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
多孔介质期刊
影响因子: 1.061 5年影响因子: 1.151 SJR: 0.504 SNIP: 0.671 CiteScore™: 1.58

ISSN 打印: 1091-028X
ISSN 在线: 1934-0508

多孔介质期刊

DOI: 10.1615/JPorMedia.v18.i6.10
pages 559-567

NATURAL CONVECTION FROM A CYLINDER IN SQUARE POROUS ENCLOSURE FILLED WITH NANOFLUIDS

Habibis Saleh
School of Mathematical Sciences, Universiti Kebangsaan Malaysia, 43600 UKM Bangi Selangor, Malaysia
I Hashim

ABSTRACT

The problem of natural convection induced by a temperature difference between an outer porous enclosure and an inner circular cylinder is studied in this paper. The fluid in the porous enclosure is a water-based nanofluids containing Ag, Cu, Al2O3, or TiO2 nanoparticles. The coupled momentum and energy equations have been solved numerically over a wide range of values of the solid volume fraction, the Rayleigh number, the cylinder radius, and various temperature conditions of the bottom wall. It is found that there exists an optimum cylinder radius, below which the increasing cylinder radius increases the strength of flow circulation and above which the cylinder radius decreases the strength of flow circulation. The heat transfer rate increases linearly by increasing the nanoparticles concentration for all cylinder radius and Rayleigh number.


Articles with similar content:

NUMERICAL SIMULATION OF NATURAL CONVECTION AROUND AN OBSTACLE PLACED IN AN ENCLOSURE FILLED WITH DIFFERENT TYPES OF NANOFLUIDS
Heat Transfer Research, Vol.45, 2014, issue 3
Seyed Sadegh Mirtalebi Esforjani, Arash Karimipour, Mohammad Hemmat Esfe, Ali Akbar Abbasian Arani
BUOYANCY-DRIVEN HEAT TRANSFER ENHANCEMENT IN A SINUSOIDALLY HEATED ENCLOSURE UTILIZING HYBRID NANOFLUID
Computational Thermal Sciences: An International Journal, Vol.9, 2017, issue 5
Tahar Tayebi, Ali J. Chamkha
MIXED CONVECTION FLOW AND HEAT TRANSFER IN A VENTILATED INCLINED CAVITY CONTAINING HOT OBSTACLES SUBJECTED TO A NANOFLUID
Heat Transfer Research, Vol.45, 2014, issue 4
Seyed Sadegh Mirtalebi Esforjani, Mohammad Akbari, Mohammad Hemmat Esfe, Sina Niazi
MHD MIXED CONVECTION IN TRAPEZOIDAL ENCLOSURES FILLED WITH MICROPOLAR NANOFLUIDS
Nanoscience and Technology: An International Journal, Vol.9, 2018, issue 4
Sameh Elsayed Ahmed, Xiaohui Zhang, Zehba A. Raizah, M. A. Mansour, Ahmed Kadhim Hussein
NATURAL CONVECTION IN A SQUARE CAVITY FILLED WITH A NON-DARCY POROUS MEDIUM SATURATED WITH NANOFLUID BY THE BOUNDARY ELEMENT METHOD
Journal of Porous Media, Vol.20, 2017, issue 10
Renata Jecl, Janja Kramer Stajnko, Jure Ravnik