Experimental Studies on Stratified Flow and Interfacial Wave in Tidal River Model

Abstract

The physical processes of unsteady flow in tidal reiver estuary are studied experimentally. These flows may be treated as two-layer flows without mixinng at or through the interface. Treating these flows as such requires to provide the interfacial shear known. Then, finding interfacial shear coefficient, this experiment by hydraulic model shows that the profielofs composed of four typical patterns are P, A, Z and B and are likely to vary with tide stage of their stratification. Further, the data obtained on the interfacial shear are compared to the results by the former researchers in Fig.10. Patterns of P & Z are shown to be good agreement with the former's results, but A & B are not compatible with this approximation. Flowing states depended on the river run-off are evaluated and shown to be the same results.