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A probability-based method is presented that can be used to simulate 2-D velocity distribution in rectangular open channels and to estimate the flow discharge. The method is based on Chiu s velocity distribution equation. A technique for estimating a parameter of 2-D velocity equation has been developed, by which the 2-D velocity distribution in rectangular open channels can be simulated by using one or several velocity samples, or even without using any velocity data. The present study also developed an efficient method of discharge estimation in rivers, which is applicable regardless of…mehr

Produktbeschreibung
A probability-based method is presented that can be
used to simulate 2-D velocity distribution in
rectangular open channels and to estimate the flow
discharge. The method is based on Chiu s velocity
distribution equation. A technique for estimating a
parameter of 2-D velocity equation has been
developed, by which the 2-D velocity distribution in
rectangular open channels can be simulated by using
one or several velocity samples, or even without
using any velocity data.
The present study also developed an efficient method
of discharge estimation in rivers, which is
applicable regardless of whether flow is steady or
unsteady. It only requires a quick velocity
sampling. The relation between the surface velocity
and the vertical mean velocity has been studied. It
can be used for developing a non-contact method of
discharge measurement.
Under the same framework of analysis, a new slope-
area method has been developed to determine the flow
discharge. It can reduce errors due to the
uncertainties in Manning s n and the energy
coefficient that exist in the widely-used slope-
area method.
Autorenporträt
Shih-Meng Hsu, Ph.D., is Director of the Hydrogeological
Investigation Research Group within the Geotechnical Engineering
Research Center at Sinotech Engineering consultants, Inc. in
Taipei, Taiwan. In addition to the research area, his Ph.D.
research focused on improvement of measurements of flow and
sediment in rivers.