Particle simulation algorithms with short-range forces in MHD and fluid flow [electronic resource].
- Published
- Washington, D.C. : United States. Dept. of Energy, 1992.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description
- Pages: (17 pages) : digital, PDF file
- Additional Creators
- University of Texas at Austin, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access
- Free-to-read Unrestricted online access
- Summary
- Attempts are made to develop numerical algorithms for handling fluid flows involving liquids and liquid-gas mixtures. In these types of systems, the short-range intermolecular interactions are important enough to significantly alter behavior predicted on the basis of standard fluid mechanics and magnetohydrodynamics alone. We have constructed a particle-in-cell (PIC) code for the purpose of studying the effects of these interactions. Of the algorithms considered, the one which has been successfully implemented is based on a MHD particle code developed by Brunel et al. In the version presented here, short range forces are included in particle motion by, first, calculating the forces between individual particles and then, to prevent aliasing, interpolating these forces to the computational grid points, then interpolating the forces back to the particles. The code has been used to model a simple two-fluid Rayleigh-Taylor instability. Limitations to the accuracy of the code exist at short wavelengths, where the effects of the short-range forces would be expected to be most pronounced.
- Report Numbers
- E 1.99:doe/et/53088-564
E 1.99: ifsr--564
ifsr--564
doe/et/53088-564 - Subject(s)
- Other Subject(s)
- Note
- Published through SciTech Connect.
07/01/1992.
"doe/et/53088-564"
" ifsr--564"
"DE93000407"
Tajima, T.; Umegaki, K.; Cable, S. - Funding Information
- FG05-80ET53088
View MARC record | catkey: 14744994