Abstract
In order to reveal the discipline and the main influence factor of disturbed pressure distribution along sinuous bankline, the small disturbance theory was used to linearize the 2D shallow water equations and the boundary conditions. Analytic expressions of disturbed pressure along sinusoidal curved bankline had been derived. A sensitivity analysis of influence factors was also presented. The pressure expressions and sensitivity analysis show that the disturbed pressure along the slightly curved bankline follows sinusoidal distribution. The crest and trough values of disturbed pressure appear at the maximum curvature locations of concave and convex bank, respectively. The bank amplitude-to-wavelength ratio a/λ is found to be the main factor of pressure variation in subcritical flow. The derived results can be used to estimate the boundary condition of stream-subsurface exchange in riparian zones, which is helpful to the further study on lateral hyporheic exchange and hydrodynamics in riparian areas.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.