複断面開水路流れの水理特性について(6)

Abstract

The velocity distribution together with a stage discharge curve obtained by experiments for a compound open channel are discussed. The distribution of the velocity between the main channel and the flood plain is founded to be closely related to two mixing processes which are dominated by shearing and secondary flows. A new method is proposed for calculating a stage discharge curve which shows good agreement with experimental data.An application of the turbulence models is also discussed in this paper. The results obtained by the models are compared with the accurate data of turbulece data by using a 3-component LDA. The model results show good agreements with experimental data in a rectangular open channel, but not enough in a compound open channel.