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RISModeling the Evolution of Incised Streams. II: Streambank Erosion
Publisher: American Society of Civil Engineers
Abstract: Incision and ensuing widening of alluvial stream channels is widespread in the midsouth and midwestern United States and represents an important form of channel adjustment. Streambanks have been found to contribute as much ...
Closure to “Modeling the Evolution of Incised Streams. II: Streambank Erosion” by Eddy J. Langendoen and Andrew Simon
Publisher: American Society of Civil Engineers
Modeling the Evolution of Incised Streams: I. Model Formulation and Validation of Flow and Streambed Evolution Components
Publisher: American Society of Civil Engineers
Abstract: A robust computational model for simulating the long-term evolution of incised and restored or rehabilitated stream corridors is presented. The physically based model simulates the three main processes that shape incised ...
Bed Topography and Sand Transport Responses to a Step Change in Discharge and Water Depth
Publisher: American Society of Civil Engineers
Abstract: At base-flow conditions, ephemeral streams with mobile beds may inherit bed topography caused by previous higher flow events, resulting in bed topography that is not in equilibrium with flow conditions. Major flow events ...
Erosion of Sand from a Gravel Bed
Publisher: American Society of Civil Engineers
Abstract: Cleaning of fine sediment out of gravel streambeds has become an important method to restore affected stream habitats. Introducing the increased flows needed to entrain fine sediments without eroding the coarser fractions ...
Erosion of Sand from a Gravel Bed
Publisher: American Society of Civil Engineers
Abstract: Cleaning of fine sediment out of gravel streambeds has become an important method to restore affected stream habitats. Introducing the increased flows needed to entrain fine sediments without eroding the coarser fractions ...
Sediment Transport and Bed-Form Characteristics for a Range of Step-Down Flows
Publisher: ASCE
Abstract: Ephemeral streams with mobile beds represent a challenging environment for sediment transport prediction. Bed topography from relatively infrequent high flow events may persist after hydrograph recession, resulting in ...
Structural Changes of Mobile Gravel Bed Surface for Increasing Flow Intensity
Publisher: ASCE
Abstract: The structure of a mobile bed in a laboratory channel composed of sand and gravel (D50=8 mm) was characterized over a series of experiments with steady flows from a low flow, where only the finer fractions of the bed ...
Effect of Increasing Antecedent Flows on Equilibrium Bed-Load Transport Rates in a Laboratory Channel with a Sand and Gravel Bed Channel
Publisher: ASCE
Abstract: Experiments were conducted in a laboratory flume in which gravel and total bed-load rates were measured continuously using independent methods that allowed evaluation of the effect of four antecedent flow conditions on the ...
Sediment Transport and Bed Topography for Realistic Unsteady Flow Hydrographs of Varying Length in a Laboratory Flume
Publisher: American Society of Civil Engineers
Abstract: Complex interactions between flowing water and bedforms in rivers with sand beds during changing flow rates may result in bedforms, flow resistance, and sediment transport rates that differ on the rising and falling limbs ...