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has been cited by the following article:

• TITLE: Experimental Study of the Effects of Submerged Dikes on the Energy and Momentum Coefficients in Compound Channel

  AUTHORS: Alireza Keshavarzi, Mehdi Valizadeh, James Ball

  KEYWORDS: Submerged Vane, Flow Structure, Compound Channel, Velocity Meter (Micro-ADV)

  JOURNAL NAME: Engineering, Vol.2 No.11, November 26, 2010

  ABSTRACT: This paper aims to understand the flow structure around submerged dike in the main channel and flood plain of a compound cross section. The study undertaken to develop this understanding was carried out in a laboratory flume using a submerged vane installed at a 90 degree angle to the bank. In order to study the flow structures, the flow velocity was measured using a three-dimensional Acoustic Doppler Velocity meter (micro-ADV) with data collection rate of 50 Hz. These flow velocity measurements were taken at 500 points on a regular grid. As the tests were undertaken with turbulent flow, these conditions were subcritical. Furthermore, all the tests were undertaken using a fixed bed. The results obtained showed that the momentum transfer and the kinetic energy reduced in two directions. Also the energy and momentum coefficients decreased significantly with the installation of the submerged vane inside the main channel. Finally, streamlines were found to deviate from the side walls of channel into the main channel.