A Numerical Calculation of Two-Dimensional Lagrangian Hydrodynamics Utilizing the Concept of Space-Dependent Time Steps

Abstract

A numerical experiment is described in which an attempt was made to reduce the calculation time for a two-dimensional, Lagrangian, hydrodynamics code, without loss of accuracy. The reduction was accomplished by utilizing a space-dependent time step; i.e., the frequency with which a point is calculated depends on the rate at which changes are occurring in the vicinity of the point. This system permitted savings to be made by eliminating calculations in regions undergoing relatively slow changes.

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Document Details

Document Type
Technical Report
Publication Date
Sep 02, 1965
Accession Number
ADA382677

Entities

People

  • Martha S. Hoyt
  • Phillip L. Browne

Organizations

  • Los Alamos National Laboratory

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Frequency
  • Geometry
  • Hydrodynamics
  • Mathematics
  • Physical Properties
  • Sizes (Dimensions)
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Systems Analysis and Design

Technology Areas

  • Space