LES Modeling with Experimental Validation of a Compound Channel having Converging Floodplain

Validation of Computational Fluid Dynamics Approach of Lateral Velocity Profile Due to Curvature Effect on Floodplain Levee of Two-stage Meandering Channel

“…Various studies have investigated the lateral velocity profile, sharing of depth averaged velocity as well as shear force, transference of momentum, and discharge calculation in meandering compound channels ([1]; [2]; [3]; [4]; [5]; [6]; [7]; [8]; [9]; [10][11][12][13][14][15]). Also numerous investigations were carried out to examine the flow pattern at channel confluence considering various geometrical parameters by using numerical methods ( [16]; [17]; [18]; [19]; [20]; [21]; [22]; [23]; [24]; [25][26][27]). Kiely [4] and McKeogh and Kiely [28] investigated on compound channels and concluded that the high turbulence intensities were seen in floodplain area of compound meandering channel than straight compound channel in longitudinal direction.…”

“…Lane et al [26] performed CFD analysis by changing bed topography and roughness on gravel-bed River and also evaluated wall roughness height in individual cells based on cell porosity and technological capabilities. Carney et al [27] investigated natural channels with substantial bed roughness to offer a strategy to mitigate the coarse bed utility through CFD analysis. A comparative study of Reynolds Averaged Navier-Stokes (RANS) and Double Averaged Navier-Stokes (DANS) turbulent models were performed by Rameshwaran et al [28] for fine as well as coarse gravel bed, widely spaced pebble cluster bed in meandering river.…”

“…Mohanta et.al. [25][26][27] studied non-uniform flow and their effect on velocity and boundary shear distribution through experimental as well as Large Eddy Simulation (LES) turbulence model in numerical CFD approach on converging compound channel. The semi-logarithmic relationship between velocity and distance from the wall is characterised as the 'law of wall,' which exists outside the laminar zone.…”

Modelling of Wind Pressure Coefficients on C-Shaped Building Models

“…Chow et al [16] investigated to simulate smoke filling in big halls by CFD. Mohanta and Patra [17] used CFD simulation for studying the flow field distribution in converging compound channel by the LES turbulence model.…”