IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR Asia Pacific Division Proceedings : 19th IAHR APD Congress, Hanoi 2014 : Session 1: ENVIRONMENTAL HYDRAULICS : A PHYSICAL HYDRAULIC MODEL OF SAIGON RIVER IN SOUTHERN VIETNAM
A PHYSICAL HYDRAULIC MODEL OF SAIGON RIVER IN SOUTHERN VIETNAM
Author : NGUYEN QUOC Y (1) , LE THANH THUAN (1) , TRA NGUYEN QUYNH NGA (1 ) & JOHN C. WELLS (2 )
Saigon River, in the south of Vietnam, is suffering severely from bank erosion and failure. A number of efforts, including academic researches, have been put to prevent the failure but limited success has been achieved. Contributing to understand the failure mechanism, we have been conducting a study on effects of flow patterns on the bank erosion and
failure. Particularly, we are focusing on the secondary flows in the curved portions of the river. Both experiments and numerical computations are conducted. This paper reports the experimental study. A physical hydraulic model of the river portion around Thanh Da peninsula was built at scales of 1:500 and 1:100 in the horizontal and vertical directions, respectively. The Froude number was near 0.1. Flow depths and flow velocities in the model were examined by a depth gauge and a 3D(three-dimensional) Acoustic Doppler Velocimeter (ADV). The ADV measured streamwise velocity along the model and sectional flowfields at different flowrates. From the measured data, effects of secondary flows on river bank and bed erosion was discussed.
File Size : 6,807,595 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR Asia Pacific Division Proceedings
Category : 19th IAHR APD Congress, Hanoi 2014
Article : Session 1: ENVIRONMENTAL HYDRAULICS
Date Published : 09/03/2015
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