NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Finite-Difference Algorithms For Computing Sound WavesGoverning equations considered as matrix system. Method variant of method described in "Scheme for Finite-Difference Computations of Waves" (ARC-12970). Present method begins with matrix-vector formulation of fundamental equations, involving first-order partial derivatives of primitive variables with respect to space and time. Particular matrix formulation places time and spatial coordinates on equal footing, so governing equations considered as matrix system and treated as unit. Spatial and temporal discretizations not treated separately as in other finite-difference methods, instead treated together by linking spatial-grid interval and time step via common scale factor related to speed of sound.
Document ID
19930000468
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Davis, Sanford
(NASA Ames Research Center, Moffett Field, CA.)
Date Acquired
August 16, 2013
Publication Date
August 1, 1993
Publication Information
Publication: NASA Tech Briefs
Volume: 17
Issue: 8
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
ARC-13098
Accession Number
93B10468
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

There are no available downloads for this record.
No Preview Available