Viscous conducting flows with smooth-particle applied mechanics

Journal Article · Wed Nov 01 00:00:00 EST 1995 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

DOI:https://doi.org/10.1103/PhysRevE.52.4899· OSTI ID:122413

Kum, O; Hoover, W G ^[1]; Posch, H A ^[2]

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1. Department of Applied Science, University of California at Davis/Livermore and Lawrence Livermore National Laboratory, Livermore, California 94551-7808 (United States)
2. Institute for Experimental Physics, University of Vienna, Boltzmanngasse 5, Vienna A-1090 (Austria)

Smooth-particle methods have a 20-year history of solving complex problems in fluid and solid mechanics. Here we first discuss the method, pointing out an interesting and fruitful parallel linking smooth-particle methods to atomistic molecular dynamics. We then assess the accuracy and applicability of the method by comparing a set of smooth-particle Rayleigh-Benard problems, all in the laminar regime, to corresponding highly accurate grid-based numerical solutions of the continuum equations. Both transient and stationary smooth-particle solutions reproduce the grid-based data with velocity errors on the order of a few percent.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 122413
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Vol. 52, Issue 5; Other Information: PBD: Nov 1995
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
VISCOUS FLOW
MATHEMATICAL MODELS
CONVECTION
COMPUTERIZED SIMULATION
DIFFERENTIAL EQUATIONS
WEIGHTING FUNCTIONS
HEAT FLUX