Practical Simulations of Two-Phase MHD Flows with Wall Effects

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-03ER83676
Agency Tracking Number: 72766S03-I
Amount: $750,000.00
Phase: Phase II
Program: SBIR
Awards Year: 2004
Solicitation Year: 2003
Solicitation Topic Code: 34
Solicitation Number: DOE/SC-0059
Small Business Information
31255 Cedar Valley Drive, Suite 327, Westlake, CA, 91362
HUBZone Owned: Y
Woman Owned: N
Socially and Economically Disadvantaged: Y
Principal Investigator
 Ramakanth Munipalli
 (818) 865-3718
Business Contact
 Vijaya Shankar
Title: Dr.
Phone: (818) 865-3713
Research Institution
72766-This project will develop a unique computational environment as a design tool for incompressible magnetohydrodynamic (MHD) flows with free surfaces. In particular, the MHD limitations on design, as function of flow speed, will be determined. Several numerical and physical issues related to solid wall treatment in MHD flows were resolved in Phase I. The code was shown to be able to be run on parallel computers using the electric potential formulation with 3-D magnetic fields. The code was convergent at very high Hartmann number cases (e.g., 10,000). Free surface flow capability was enhanced by enforcing strict mass conservation and demonstrating the code capability for canonical problems. Two fusion related test cases, pertaining to the DiMES and NSTX experiments, were used to show code applicability. In Phase II, the code will be used to treat liquid metal flows in closed channels with solid walls of general magnetic properties. An induced magnetic field model will be added, and ferromagnetic features will be provided for solid wall treatment. Fast Poisson solvers for pressure and potential will be added for solution speedup. Fusion-relevant test cases (e.g., test modules in the ITER environment) will be used for demonstration. Commercial Applications and Other Benefits as described by awardee: The code has already shown potential for use in studying free surface and closed channel concepts in nuclear fusion. Beyond its importance for fusion reactor design, other potential applications include MHD enhanced steel and aluminum processing in the metallurgical community, and conjugate heat transfer in the aerospace industry.

* Information listed above is at the time of submission. *

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