Three-dimensional, Free-Lagrange hydrodynamics

Conference · Thu Jan 01 00:00:00 EST 1987

DOI:https://doi.org/10.1016/0010-4655(88)90021-5· OSTI ID:6009840

Trease, H

This paper describes the algorithms that make up a 3-D version of the Free-Lagrange Method. The basic method involves the explicit integration of the fluid flow equations over control volumes formed by Voronoi cells. A Voronoi cell is an arbitrary, convex polyhedron that has plane polygon faces. The ''nearest'' neighbors of any given mass point are identified by noting the mass point that lies on the opposite side of a given Voronoi face. The nearest neighbors of a mass point are allowed to change in response to the (Lagrange) motion of the mass points. This implies that the mesh reorganizes itself as the mass points move with the fluid motion.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6009840
• Report Number(s): LA-UR-87-3163; CONF-8704208-1; ON: DE88000494
• Resource Relation: Journal Volume: 48; Journal Issue: 1; Conference: Numerical applications for particle methods meeting, Los Alamos, NM, USA, 6 Apr 1987; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
FLOW MODELS
THREE-DIMENSIONAL CALCULATIONS
BOUNDARY CONDITIONS
CONTINUITY EQUATIONS
FLUID FLOW
HYDRODYNAMICS
MESH GENERATION
OPTIMIZATION
SHOCK WAVES
DIFFERENTIAL EQUATIONS
EQUATIONS
FLUID MECHANICS
MATHEMATICAL MODELS
MECHANICS
PARTIAL DIFFERENTIAL EQUATIONS
640410* - Fluid Physics- General Fluid Dynamics