Advances in the Free-Lagrange Method Including Contributions on Adaptive Gridding and the Smooth Particle Hydrodynamics Method: Proceedings of the Next Free-Lagrange Conference Held at Jackson Lake Lodge, Moran, WY, USA 3–7 June 1990

Harold E. Trease, Martin F. Fritts, W. Patrick Crowley (eds.)3540549609, 9783540549604, 3540549609-:, 0387549609

The contributions in this volume focus on the use of general connectivity (unstructured) adaptive meshes for Lagrangian calculations but contain a substantial amount of material on Euler and arbitrary Lagrange-Euler techniques as well. Contributions on the smooth particle hydrodynamics method and on deterministic vortex methods broaden the scope of the material and allow comparisons of different, though allied, techniques to be made. The format of the conference was designedto optimize the interaction among the attendees. An edited version of roundtable discussions is included in these proceedings.

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Table of contents :
Introduction….Pages 1-5
Exact conservation of energy and momentum in staggered-grid hydrodynamics with arbitrary connectivity….Pages 7-19
Recent modifications in the HOBO mesh….Pages 20-27
TRIX: A free-lagrangian hydrocode….Pages 28-36
Solution of Euler’s equations on adaptive grids using a fast unstructured grid second order Godunov solver (FUGGS)….Pages 37-46
Numerical simulation of time-dependent 3-D flows using adaptive unstructured grids….Pages 47-56
An explicit-implicit solution of the hydrodynamic and radiation equations….Pages 57-65
Electromagnetic particle codes on unstructured grids….Pages 66-75
Asynchronous 3D free lagrange code….Pages 76-81
Roundtable….Pages 82-94
Unstructured mesh relaxation….Pages 95-103
Design systems for adaptive general connectivity meshes: Increasing total efficiency for computational physics applications….Pages 104-119
Electromagnetic scattering calculations using a finite—element solver for the Maxwell equations….Pages 120-129
Delaunay tetrahedralization in a 3-D free-lagrangian multimaterial code….Pages 130-138
3-D reconnection and fluxing algorithms….Pages 139-148
Parallel nearest neighbor calculations….Pages 149-156
Visualization of 3-D free-Lagrange calculational data….Pages 157-166
Roundtable….Pages 167-179
The free-Lagrange method on the connection machine….Pages 181-192
Thermal diffusion in the X-7 three-dimensional code….Pages 193-202
An even-parity/odd-parity formulation for deterministic transport calculations on massively parallel computers (U)….Pages 203-211
Deterministic transport on an arbitrarily connected grid….Pages 212-221
Roundtable….Pages 222-226
An evaluation of smoothed particle hydrodynamics….Pages 227-238
Smooth particle hydrodynamics….Pages 239-247
Smooth particle hydrodynamics with strength of materials….Pages 248-257
An angular weighting approach for calculating gradients and divergences….Pages 258-265
Free-Lagrange advection slide lines….Pages 266-276
Comparisons between the cell-centered and staggered mesh Lagrangian hydrodynamics….Pages 277-288
Vorticity errors in multidimensional Lagrangian codes….Pages 289-292
Deterministic vortex methods for the incompressible Navier-Stokes equations….Pages 293-306
Roundtable….Pages 307-312