UTHM Institutional Repository

A numerical study of transient natural convection of water near its density extremum

Othman, Safiah (2008) A numerical study of transient natural convection of water near its density extremum. In: International Conference on Mechanical and Manufacturing Engineering 2008 (ICME 2008), Puteri Pacific Johor Bahru, Johor, Malaysia .

[img]
Preview
PDF
safiah_othman.pdf

Download (445kB)

Abstract

This numerical (CFD) study investigates the transient natural convection of water near its density extremum within a vertical cylindrical geometry. A non-Boussinesq approach is employed and the results are compared to previous studies. Distilled water having initial temperature of 8 ºC is used as the medium, while the entire cavity is insulated. This experimental chamber is enclosed within another glass cylinder, and coolant fluid at a fixed temperature of 0 ºC is pumped continuously through the annular region between the cylinders. Results of cooling curve measurements and the flow patterns present good agreement. From the resulting numerical outputs, it is evident that the density inversion of water has a significant influence on the natural convection in the cavity.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: numerical, transient natural convection of water, density extremum
Subjects: T Technology > T Technology (General)
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Materials Engineering and Design
Depositing User: Norfauzan Md Sarwin
Date Deposited: 22 Jan 2010 07:10
Last Modified: 29 Apr 2011 06:40
URI: http://eprints.uthm.edu.my/id/eprint/276
Statistic Details: View Download Statistic

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year