A Numerical Calculation of Two-Dimensional Lagrangial Hydrodynamics Utilizing the Concept of Space-Dependent Time Steps
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AD Number: ADA384732
Subject Categories: FLUID MECHANICS
Corporate Author: LOS ALAMOS NATIONAL LAB NM
Title: A Numerical Calculation of Two-Dimensional Lagrangial Hydrodynamics
Utilizing the Concept of Space-Dependent Time Steps
Personal Authors: Browne, Phillip L.; Hoyt, Martha S.
Report Date: 02 SEP 1965
Pages: 26 PAGES
Report Number: LA-3324-MS
Contract Number: W-7405-ENG
Monitor Acronym: XJ
Monitor Series: XD
Descriptors: *HYDRODYNAMIC CODES, TWO DIMENSIONAL, COMPUTATIONAL FLUID
DYNAMICS, LAGRANGIAN FUNCTIONS.
Identifiers: HASTI COMPUTER PROGRAM
Abstract: A numerical experiment is described in which an attempt was made to
reduce the calculation time of 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: 20 DEC 2000