Research Abstracts Online
2008 - March 2009
University of Minnesota Twin Cities
Institute of Technology
Department of Mechanical Engineering
PI: Joachim V. Heberlein, Associate Fellow
Co-PI: Emil Pfender
Plasma processing is increasingly being used to develop new materials processing technologies and to improve existing ones. Process models may be used as design tools to simulate complex phenomena, such as magneto-fluid-dynamic interactions, turbulence, and particle breakup and transport, that take place in processes such as wire-arc spraying, plasma deposition, and plasma spraying.
These researchers have developed computer codes that accurately calculate the sets of equations describing plasma flows. These codes are used to simulate the various processes listed above. This research involves the iterative or transient solution of a large set of strongly coupled non-linear partial differential equations, often with a very fine grid resolution in a two- or three-dimensional geometry, and thus requires the computing resources available at the Supercomputing Institute. The group has started developing optimized, parallel versions of their codes, which will allow them to explore physical processes (i.e., thermodynamic and chemical non-equilibrium effects, plasma-surface interactions, turbulence) that, due to their computational cost, are unfeasible to be modeled using a single processor.
Srikumar Ghorui, Research Associate
Ashraf El Sebaei Kamal, Graduate Student
David Osterhouse, Graduate Student
Madhura Shashikumar Mahajan, Graduate Student
Venkat Raman Thenkarai Narayanan, Graduate Student
Juan Pablo Trelles, Graduate Student