EXPERIMENTAL STUDY OF A FLOW IN ZIG-ZAG CHANNELS IMITATING WETLAND RIVERS

Abstract

 It is well seen that the places composed by straight channels and sharply curved channels on the wetland rivers, unlike rivers of alluvial area which have consecutive curves. A problem of the structure of curved meandering shape has already been dealt with by many researchers, and we can consider it in a systematic manner. On the other hand, structure of flexure meandering shape isn’t clear yet. In this study, we visualize surface current with dye and measure the flow rate of cross-section with one-dimensional LDV. Then flow on flexure point and around it is observed.