Graduate Seminar - Numerical Investigation of Fluid and Heat Flows In Circular Ducts Under the Influence of Transverse Magnetic Fields
Friday, November 30, 2012 from 03:30 PM to 04:30 PM
Please join us at 3:30 p.m. Friday, November 30, 2012 in Keplinger Hall, room #M2, for the McDougall School of Petroleum Engineering's Graduate Seminar featuring Maher M. Shariff, Ph.D., Research Scientist, Saudi Aramco Research & Development Center, and Visiting Research Scholar at The University of Tulsa's McDougall School of Petroleum Engineering.
The presentation will be focused on a project that was a collaborative effort between the Research and Development Center of Saudi Aramco and the Department of Mechanical Engineering at King Saud University. The project studied the effects of magnetohydrodynamics (MHD) on fluid and heat flow characteristics in pipes, by using a zero-equation turbulence model. Fully developed Reynolds averaged turbulent MHD pipe flow with wall heating was simulated. Uncertainty was approximated through grid-independence and model validation. Effect of Reynolds, Hartmann, and Prandtl numbers on heat transfer characteristics was investigated. With increasing Hartmann number, heat transfer was shown to increase towards the side layer. Increasing the Prandtl number was shown to enhance heat transfer. Increasing the Reynolds number decreased the effect of Hartmann number. The presentation will describe how the magnetic field effect applied to a conductive fluid, which results in what is known as the Lorentz force, alters both hydrodynamic- and thermal-boundary layers. This can be utilized according to a specific application requirement. MHD technology can be utilized in various industrial applications; it provides heat transfer enhancement, drag reduction in fluid flows as well as electric power generation. Other applications where MHD principles can be deployed, includes blood flow, micro pumps, porous media, chemical reactions and mixing, and material production.