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A simple physical approach for deriving the characteristic equations of fluid dynamics
Author(s) -
Wang B. N.,
Hoffman J. D.
Publication year - 1990
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.1650100404
Subject(s) - simple (philosophy) , computational fluid dynamics , equations of motion , classical mechanics , mathematics , mathematical analysis , physics , mechanics , philosophy , epistemology
Abstract A simple physical approach for deriving the characteristic equations of fluid dynamics is presented. The approach is based on the physical concept that information propagates through a flowfield along pathlines due to particle motion and along wavelines due to acoustic wave motion. The characteristic equations and compatibility equations are derived in vector forms which are valid in any co‐ordinate system.