Boundary conditions in a meshless staggered particle code [electronic resource].

Published: Washington, D.C. : United States. Dept. of Defense, 1998.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description: 10 pages : digital, PDF file
Additional Creators: Los Alamos National Laboratory, United States. Department of Defense, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary

A meshless method utilizing two sets of particles and generalized boundary conditions is introduced. Companion sets of particles, one carrying velocity and the other carrying stress, are employed to reduce the undesirable effects of colocation of all field variables and increase accuracy. Boundary conditions implemented within this staggered framework include contact, stress-free, stress, velocity, and symmetry constraints. Several test problems are used to evaluate the method. Of particular importance is the motion of stress particles relative to velocity particles in higher dimensions. Early results show promise, but difficulties remain that must be overcome if the staggered technique is to be successful.

Report Numbers

E 1.99:la-ur--98-590
E 1.99: conf-980639--
conf-980639--
la-ur--98-590

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Note

Published through SciTech Connect.
07/01/1998.
"la-ur--98-590"
" conf-980639--"
"DE98003452"
4. world congress on computational mechanics, Buenos Aires (Argentina), 29 Jun - 2 Jul 1998.
Libersky, L.D.; Randles, P.W.

Funding Information

W-7405-ENG-36

View MARC record | catkey: 14354408