[PDF] Top 20 Numerical simulation of flow over a rough bed

... the simulation of channel ...channel flow was performed by Kim et ...flows over two-dimensional roughness elements 共 Miy- ake et ...fully rough flow over three-dimensional 共 3D 兲 ... See full document

... Present study examines turbulent structures of a rough bed open-channel flow in the context of deterministic approach. Instantaneous velocity field is measured in different hydraulic conditions using ... See full document

... mean flow and the secondary motions in the wake has been discussed and some aspects of flow unsteadiness were also analyzed, including the separation process, flow structures and coherent motions in ... See full document

... some flow modes in- cluding non-oscillation mode, shear layer mode and wake ...of flow fields in the cavity reveal the relationship between the cavity shear layer oscillation modes and recirculating ... See full document

... out over a thick airfoil at low Reynolds ...study, numerical simulation of EPPLER 387 airfoil has been carried out for Reynolds number ...the flow simulation has been carried out with ... See full document

... of flow depths ranging from 30 mm to 130 mm so that a linear relationship between the voltage and flow depth with a fit of a value of r 2 = ...hydraulic flow conditions were created by using ... See full document

... the flow characteristics of the discrete phase in ...fluidized bed based on the Eulerian-Lagrangian method, and the effect of the bubble size on the flow structure and transient characteristics of ... See full document

... with flow visualization by the so-called schlieren method [3], [4], [5], the numerical flow simulation in nozzles used for texturizing smooth chemical yarns was ... See full document

... 109 different parameters such as the geometry of turbulators (TR and θ), volume fraction and diameter of nanoparticles, etc. on the flow field of nanofluid in the tubes were investigated. It was observed that, ... See full document

... Tap flow in the intake tunnel due to the proposed Lake Tap III at Koyna Hydroelectric Project using CFD techniques and evolution of a suitable geometry of the muck pit considering the lake tap flow to be ... See full document

... B = 26.6ν h 4 /S 2 (12) This system of two ordinary differential equations describes the flow in the channel. To solve the system, we used the 4th order Runge-Kutta method. It has a high precisions and slowly ... See full document

... This paper presents the problem of transient heat transfer and the stress in the tube of a steam-boiler membrane-wall evaporator, assuming a sudden cut of the working-fluid flow through one of its tubes. Thus, an ... See full document

... layer is strongly dependent on the fraction of mass flow that is deflected upstream at the reattachment and supplies the recirculation. They also note the bifurca- tion that occurs in a symmetrically expanded ... See full document

... different flow depths are fitted to the semi-analytical results for the rough bed turbulent flows (Cheng, 2007) in ...and rough bed turbulent flow velocity profiles can be ... See full document

... averaged bed stress is not sufficient to spec- ify the rate of bed load transport downstream of separated flow (compare ...of bed stress is broader near flow reattachment than farther ... See full document

... all cases, the equations of Navier-Stokes were numerically solved by the finite element method. In cases (a) and (b), it is observed that there is a similarity in the boundary layer separation process over the ... See full document

... also limit the applicable range of the analytical solutions. Therefore, the numerical method should be able to elim- inate these effects. However, the exact solution of the Riemann problem is less efficient. In ... See full document

... The numerical simulation of drying cassava particulates in a batched fluidized bed dryer was ...air flow at three different flow rates ...a bed of cassava particulates in turn ... See full document

... In previous laboratory experiments, scour rates for smooth and rough bed conditions were measured with SPA by changing the hydraulic (water flow rate, upstream and downstream velocities,[r] ... See full document

... fluid flow and pollutant transport in fractured ...solves flow and transport problems in a three-dimensional set of parallel ...of flow and transport in the frac- tured limestone aquifer were ... See full document