Research Article
Dec 1970
Four-Point Method of Characteristics
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VIEW THE REPLYAuthors: Michael B. Abbott and Adrianus VerweyAuthor Affiliations
Publication: Journal of the Hydraulics Division
Volume 96, Issue 12
Abstract
Conservation laws in two independent variables have a four-point symmetry when expressed in normal or characteristic form. This symmetry is notated for nearly horizontal flows and translated into easily programmed numerical operators. Simple starting and boundary subroutines are described. The output is especially well adapted to digital-analog plotting techniques, with an accuracy superior to any current difference scheme. Bed slopes and resistance terms can be easily introduced, but the method becomes less viable for general stream flows, with changes of channel section.
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Published In
Journal of the Hydraulics Division
Volume 96 • Issue 12 • December 1970
Pages: 2549 - 2564
Copyright
© 1970 American Society of Civil Engineers.
History
Published in print: Dec 1970
Published online: Feb 3, 2021
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Michael B. Abbott
Reader, International Courses in Hydraulic and Sanitary Engrg., Delft, Netherlands
Adrianus Verwey
Asst., International Courses in Hydraulic and Sanitary Engrg., Delft, Netherlands
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