Advanced three-dimensional Eulerian hydrodynamic algorithm development

Technical Report · Sun Nov 01 04:00:00 EST 1998

DOI:https://doi.org/10.2172/677122· OSTI ID:677122

Rider, W J; Kothe, D B; Mosso, S ^[1]

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1. and others

This is the final report of a three-year, Laboratory Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The purpose of this project is to investigate, implement, and evaluate algorithms that have high potential for improving the robustness, fidelity and accuracy of three-dimensional Eulerian hydrodynamic simulations. Eulerian computations are necessary to simulate a number of important physical phenomena ranging from the molding process for metal parts to nuclear weapons safety issues to astrophysical phenomena such as that associated with a Type 2 supernovae. A number of algorithmic issues were explored in the course of this research including interface/volume tracking, surface physics integration, high resolution integration techniques, multilevel iterative methods, multimaterial hydrodynamics and coupling radiation with hydrodynamics. This project combines core strengths of several Laboratory divisions. The project has high institutional benefit given the renewed emphasis on numerical simulations in Science-Based Stockpile Stewardship and the Accelerated Strategic Computing Initiative and LANL`s tactical goals related to high performance computing and simulation.

• Research Organization: Los Alamos National Lab., NM (United States)
• Sponsoring Organization: USDOE Assistant Secretary for Human Resources and Administration, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 677122
• Report Number(s): LA-UR--98-1859; ON: DE99000558
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
99 GENERAL AND MISCELLANEOUS
ACCURACY
ALGORITHMS
HYDRODYNAMICS
ITERATIVE METHODS
MATHEMATICAL MODELS
MESH GENERATION
THREE-DIMENSIONAL CALCULATIONS
USES