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RISErratum for “Free-Surface versus Rigid-Lid LES Computations for Bridge-Abutment Flow” by Sibel Kara, Mustafa C. Kara, Thorsten Stoesser, and Terry W. Sturm
Publisher: American Society of Civil Engineers
Turbulence Statistics in an Open-Channel Flow over a Rough Bed
Publisher: American Society of Civil Engineers
Abstract: This paper presents the results of a large-eddy simulation (LES) of turbulent flow over a channel bed artificially roughened by hemispheres. The Reynolds number of the flow based on the channel depth is 13,680 at a relatively ...
Effect of Floodplain Obstructions on the Discharge Conveyance Capacity of Compound Channels
Publisher: American Society of Civil Engineers
Abstract: Results of an experimental study into steady uniform flows in compound open channels with cylindrical obstructions designed to mimic emergent vegetation is presented. Two configurations—fully covered floodplain and one-line ...
Evaluation of Low Reynolds Number Turbulence Models for an Open-Channel Flow over a Rough Bed Using LES Data
Publisher: American Society of Civil Engineers
Abstract: There are quite a few studies investigating low Reynolds number turbulence models for predicting the near-wall flow over smooth walls. However, analogous work over rough walls is sparse despite the fact that many flows of ...
Clear Water Abutment Scour in a Compound Channel for Extreme Hydrologic Events
Publisher: American Society of Civil Engineers
Abstract: Peak discharges during large floods can often result in submerged orifice flow (also called “pressure flow”), or embankment and bridge overtopping flow, in which the embankment and abutment foundation of a bridge are ...
Free-Surface versus Rigid-Lid LES Computations for Bridge-Abutment Flow
Publisher: American Society of Civil Engineers
Abstract: Two separate large eddy simulations (LES) are carried out to investigate the effects of accurate computation of the curvilinear water-surface deformation of the flow through a bridge contraction. One LES employs the rigid-lid ...
Large Eddy Simulation of Flow and Tracer Transport in Multichamber Ozone Contactors
Publisher: American Society of Civil Engineers
Abstract: Three-dimensional numerical analyses of flow and transport characteristics in two representative multichamber ozone contactor models with different chamber width were conducted using large eddy simulation (LES). Both ...
Concentration-Based Decomposition of the Flow around a Confined Cylinder in a UV Disinfection Reactor
Publisher: American Society of Civil Engineers
Abstract: The proper orthogonal decomposition (POD) is applied to spatial concentration data, obtained using laser-induced fluorescence (LIF), for the flow around a confined circular cylinder (R=4,900) and compared with their ...
Effect of Bridge Abutment Length on Turbulence Structure and Flow through the Opening
Publisher: American Society of Civil Engineers
Abstract: The method of large eddy simulation (LES) was employed to investigate the flow and turbulence structure around bridge abutments of different lengths placed in a compound, asymmetric channel. The simulations were faithful ...
Effect of Bridge Abutment Length on Turbulence Structure and Flow through the Opening
Publisher: American Society of Civil Engineers
Abstract: The method of large eddy simulation (LES) was employed to investigate the flow and turbulence structure around bridge abutments of different lengths placed in a compound, asymmetric channel. The simulations were faithful ...