Investigation of Magnetic Field Effect on Natural Convection Flow using Fast Y – W Method
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2013, Vol 4, Issue 10
Abstract
The laminar steady magneto-hydrodynamics natural convection in a filled square enclosure with internal heat generation is investigated by two-dimensional numerical simulation. The enclosure is heated by a uniform volumetric heat density and walls have constant temperature. A fixed magnetic field is applied to the enclosure. The dimensionless governing equations are solved numerically for the stream function, vorticity and temperature using finite difference method for various Rayleigh (Ra) and Hartmann (Ha) numbers in MATLAB software. The stream function equation is solved using fast Poisson's equation solver on a rectangular grid (POICALC function in MATLAB), voricity and temperature equations are solved using red-black Gauss-Seidel and biconjugate gradient stabilized (BiCGSTAB) methods respectively. The proposed method is fast and there is no need to the under-relaxation factors for variables compared to commercial methods (e.g. SIMPLE) and is applicable for high Rayleigh numbers in steady state. The ratio of the Lorentz force to the buoyancy force (Ha2/Ra) is introduced as an index to compare the contribution of natural convection and magnetic field strength on heat transfer.
Authors and Affiliations
M. A. Taghikhani *| Department of Engineering, Imam Khomeini International University, Qazvin, Iran, taghikhani@ENG.ikiu.ac.ir, H. Najafkhani| Department of Engineering, Imam Khomeini International University, Qazvin, Iran
Keywords
Related Articles
- EP ID EP5702
- DOI -
- Views 291
- Downloads 8
The Effect of Educational Program based on BASNEF Model on the Nutritional behavior of Pregnant Women
Proper maternal nutrition during pregnancy is related to her success in pregnancy, childbirth, and health and growth of the embryo. Accordingly, the present study aims to determine the effect of educational intervention...
Evaluation of mercury pollution in breast milk and Iranian infants’ hair
Breast milk is the main nutrition for the children of 4-6 months old. The mercury of mother’s body may be transferred to infant via milk. Mercury is a neural toxic metal and endangers the proper growth of infants. This p...
Does Frustration Cause Aggression? Case study: soccer fans in Iran
There is no doubt that sports and their related activities have become very important in contemporary societies. Soccer, among various sports, has much more importance, and attracts utmost attention of people throughout...
The Analysis of driving and inhibiting factors affecting the admission of changing cultivation pattern of potatoes to sugar beet
Changing cropping pattern is a strategy for crop rotation and reducing wastes and soil erosion, which is, nowadays, widely used in Iran and the world. Therefore, to decrease the excessive cropping of potato which makes a...
Comparing the Religious Orientation and the Cope Style with Stress and its Relation with Divorced, Married and Family Protector Women
This study aims at comparing the relationship between religious orientation and the cope style with stress and also its relation with divorced, married and family protector women of the Khorramabad city in 1389 regarding...