Impact of Watershed and Climate Changes on River Bed Morphology and Biota

Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchiv

Hydrodynamics of surface irrigation: vertical structure of the surge front

A model for surface irrigation is developed that allows the determination of the vertical structure of the velocity profile in the vicinity of the wave front. The pressure is not assumed to be hydrostatically distributed and no assumptions are made regarding the shape of the freesurface profile. The turbulent kinetic energy and rate of dissipation are computed by a two-equation model and accurate determination of the bottom shear makes possible the analysis of particle suspension. The model is based on a two-dimensional finite element model in the vertical plane and uses the kinematic condition for determining the position of the free surface. It also incorporates a numerical technique for describing surface penetration and wave breaking by combining a Lagrangian approach that allows the computational nodes to move individually and then automatically reshapes the element grid. The potential value of the model lies in its ability to provide information on vertical mixing, settling and suspension of contaminated solids commonly found in irrigation applications.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/46911/1/271_2004_Article_BF00187196.pd

Modeling erosion and sedimentation coupled with hydrological and overland flow processes at the watershed scale

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/100271/1/wrcr20373-sup-0001-suppinfo1.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/100271/2/wrcr20373-sup-0002-suppinfo2.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/100271/3/wrcr20373.pd

Initial Findings On The Feasibility Of Real-Time Feedback Control Of A Hazardous Contaminant Released Into Channel Flow By Means Of A Laboratory-Scale Physical Prototype

The threat of accidental or deliberate toxic chemicals released into public spaces is a significant concern to public safety. The real-time detection and mitigation of such hazardous contaminants has the potential to minimize harm and save lives. We develop a computational fluid dynamics (CFD) flow control model with the capability of detecting and mitigating such contaminants. Furthermore, we develop a physical prototype to then test the computer model. The physical prototype is in its final stages of construction. Its current state, along with preliminary examples of the flow control model are presented throughout this paper

Initial Findings on the Feasibility of Real-Time Feedback Control of a Hazardous Contaminant Released Into Channel Flow by Means of a Laboratory-Scale Physical Prototype

The threat of accidental or deliberate toxic chemicals released into public spaces is a significant concern to public safety. The real-time detection and mitigation of such hazardous contaminants has the potential to minimize harm and save lives. We develop a computational fluid dynamics (CFD) flow control model with the capability of detecting and mitigating such contaminants. Furthermore, we develop a physical prototype to then test the computer model. The physical prototype is in its final stages of construction. Its current state, along with preliminary examples of the flow control model are presented throughout this paper