A Numerical Calculation of Two-Dimensional Lagrangian Hydrodynamics Utilizing the Concept of Space-Dependent Time Steps
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AD Number: ADA382677
Subject Categories: NUMERICAL MATHEMATICS
Corporate Author: LOS ALAMOS NATIONAL LAB NM
Title: A Numerical Calculation of Two-Dimensional Lagrangian Hydrodynamics
Utilizing the Concept of Space-Dependent Time Steps
Personal Authors: Browne, Phillip L.; Hoyt, Martha S.
Report Date: 02 SEP 1965
Pages: 17 PAGES
Report Number: LA-3324-MS
Monitor Acronym: XJ
Monitor Series: XD
Descriptors: *TWO DIMENSIONAL FLOW, HYDRODYNAMIC CODES, LAGRANGIAN FUNCTIONS.
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.
Limitation Code: APPROVED FOR PUBLIC RELEASE
Source Code: 211350
Citation Creation Date: 18 OCT 2000