| Summary: | 碩士 === 國立交通大學 === 土木工程研究所 === 82 === The purpose of this study is to attempt to use the
cubic interpolation multimode characteristics method
extended by following the concept of Holly-Pressiman two-
point scheme to solve the water continuity equation ,
momentum equation and sediment continuity equation
simultaneously. The multimode scheme combining spatial
reachback,temporal reachout and classical characteristics
schemes into one can release Courant constraint. The
stability analysis has been performed to show the merit of
the cubic interpolation technique.The sensitivity analysis on
some of key parameters has also been conducted.A set of
experimental data from Soni et. al(1980) is simulated by
the cubic interpolation multimode characteristics method
and the conventional linear interpolation multimode
characteristics method. Through the results comparison ,the
model's accuracy and stability are investigated and
discussed in details.
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