Probabilistic Approach to Hydraulic Analysis and Modeling: Modeling of 2-D velocity distribution and discharge estimation in open channel flow - Softcover

Hsu, Shihmeng

Softcover

ISBN 10: 3639114388 ISBN 13: 9783639114386

Publisher: VDM Verlag Dr. Müller, 2009

Synopsis

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.

About this title

About the Author

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.

Edition details

• Publisher: VDM Verlag Dr. Müller
• Publication date: 2009
• Language: English
• ISBN 10: 3639114388
• ISBN 13: 9783639114386
• Binding: Paperback
• Number of pages: 148