Welcome To UTPedia

We would like to introduce you, the new knowledge repository product called UTPedia. The UTP Electronic and Digital Intellectual Asset. It stores digitized version of thesis, dissertation, final year project reports and past year examination questions.

Browse content of UTPedia using Year, Subject, Department and Author and Search for required document using Searching facilities included in UTPedia. UTPedia with full text are accessible for all registered users, whereas only the physical information and metadata can be retrieved by public users. UTPedia collaborating and connecting peoples with university’s intellectual works from anywhere.

Disclaimer - Universiti Teknologi PETRONAS shall not be liable for any loss or damage caused by the usage of any information obtained from this web site.Best viewed using Mozilla Firefox 3 or IE 7 with resolution 1024 x 768.


Meor Said, Mior Azman (2005) NUMERICAL SIMULATION OF NATURAL CONVECTION HEAT TRANSFER IN NANOFLUIDS. PhD thesis, Universiti Teknologi Petronas.

[img] PDF
Download (4Mb)


The goal of this thesis is to model the behavior of the nanofluids so that their performances can be evaluated analytically and computationally. In this thesis, we consider analytical models that describe molecular viscosity f.!, thermal conductivity k. density p, specific heat c" and the coefficient of thermal expansion f3 for a nanofluid in terms of volume fraction ljJ of nanoparticles, size of the nanoparticles (e.g radius of the nanoparticle, rp), size of the base fluid molecule (e.g. radius of the liquid molecule, r1) and the temperature T. In order to validate these analytical models, we study numerically the natural convection heat transfer in a closed pipe using the commercially available CFD software FLUENT 6.0, since the experimental data is available for this configuration. In particular, we study the natural convection flow field in two configurations of L/0=0.5 and LID=l.O, where L is the length of the pipe and D is the diameter. For nanofluids, we consider the suspensions of Ab03 and CuO particles in water. Three cases with volume fraction ljJ = 0, l% and 4% for both AhOJ and CuO are considered. It is assumed that the nanoparticles of AbOJ or CuO are uniformly suspended in water; there is no aggregation of nanoparticles in the fluid medium. It is shown that the use of experimentally measured values of k. or the kinetic model of k, gives better correlation with experimental data for heat transfer compared to the Maxwell model.

Item Type: Thesis (PhD)
Academic Subject : Academic Department - Mechanical Engineering - Materials - Engineering materials - Polymers - Flow simulation
Subject: T Technology > TJ Mechanical engineering and machinery
Divisions: Engineering > Mechanical
Depositing User: Users 2053 not found.
Date Deposited: 30 Sep 2013 16:55
Last Modified: 25 Jan 2017 09:46
URI: http://utpedia.utp.edu.my/id/eprint/8037

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...