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**1 - 5**of**5**### Reprinted from Agricultural water management

, 1995

"... Vetiver grass hedges for erosion control on a cropped flood plain: hedge hydraulics ..."

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Vetiver grass hedges for erosion control on a cropped flood plain: hedge hydraulics

### FLOW THROUGH NON-SUBMERGED VEGETATION: A FLUME EXPERIMENT WITH ARTIFICIAL VEGETATION

"... Vegetation growing in the water along rivers plays an important role on the hydrodynamic behavior, on the ecological equilibrium and on the characteristics of the river. It has effects on the flow resistance and, as a result, has a large impact on water levels. The influence of non-submerged vegetat ..."

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Vegetation growing in the water along rivers plays an important role on the hydrodynamic behavior, on the ecological equilibrium and on the characteristics of the river. It has effects on the flow resistance and, as a result, has a large impact on water levels. The influence of non-submerged vegetation on flow is not so clear as yet; it needs to be further studied. The Acorus Calmus L is a kind of typical non-submerged vegetation, it is widely planted in river, but few researches have been done on the effects of these plants on the flow. A laboratory experiment using artificial vegetation selected to simulate Acorus Calmus L, was carried out in a water flume to investigate its influence on flow resistance and velocity distribution. A flow resistance model based on concepts of drag is developed to evaluate the Manningâ€™s (n) roughness coefficient for non-submerged vegetation. Experimental tests have shown that the relationship between flow depth and discharge depends significantly on the vegetation density and patterns. Manning resistance coefficient depends strongly on vegetation density and the depth of flow far more than in unvegetated channels; it increases with increasing water depth. Within vegetation, the mean velocity decreases with flow for which the vegetative roughness increases with decreasing velocity.

### Hydrodynamics of Flow Through Vegetation in Open Channels: A Review by

, 1995

"... The University of Minnesota is committed to the policy that all persons shall have equal access to its programs, facilities, and employment without regard to race religion, color, sex, national origin, handicap, age, or veteran status. r ' r I r ..."

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The University of Minnesota is committed to the policy that all persons shall have equal access to its programs, facilities, and employment without regard to race religion, color, sex, national origin, handicap, age, or veteran status. r ' r I r

### Analysis and Numerical Simulation of the Diffusive Wave Approximation of the Shallow Water Equations

, 2008

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### Convergence rates for diffusive shallow water equations (DSW) using higher order polynomials

, 2012

"... Abstract In this paper, we describe the diffusive shallow water equation (DSW) and discuss a numerical strategy to solve it using the generalized-method as a method for temporal discretization. This method provides a good norm estimate of the error and guarantees an optimal convergence rate for the ..."

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Abstract In this paper, we describe the diffusive shallow water equation (DSW) and discuss a numerical strategy to solve it using the generalized-method as a method for temporal discretization. This method provides a good norm estimate of the error and guarantees an optimal convergence rate for the spatial discretization. We also discuss the effect of higher polynomial orders on the convergence rates, focusing on the nonlinear DSW problem. Our numerical experiments show that optional convergence rates can be obtained for polynomial orders 1 through 4.