turbulent open-channel flow
Finite difference time domain modelling of sound scattering by the dynamically rough surface of a turbulent open channel flow
... a turbulent, open channel flow is poorly ...6 turbulent, subcritical flows in a rectangular flume with Reynolds numbers of 10; 800 6 Re 6 47; 300 and Froude numbers of 0:36 6 Fr 6 ...
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On Coherent Structures of Turbulent Open-channel Flow Above a Rough Bed
... a turbulent flow field through the identification of the organized vortical structure –the so- called ―coherent structures‖-that mark the ...a turbulent flow [9]. In fact, by the definition, ...
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Turbulent structures in smooth and rough open channel flows: effect of depth
... developed turbulent open channel flow which will be discussed here in detail, the wall boundary layer occupies the entire depth of flow and thus δ = ...the open channel ...
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Smooth and Rough Wall Open Channel Flow Including Effects of Seepage and Ice Cover
... insignificant turbulent activity near the free ...d) turbulent activity also shows dependency on bed surface condition, such that, ejection type activity was observed for flow over smooth bed, ...
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Numerical simulation of turbulent flow affected by vortex generators in straight channel
... This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium,[r] ...
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Passivity-Based Output-Feedback Control of Turbulent Channel Flow
... of turbulent channel flow, it was found that these controllers significantly reduced the mean perturbation en- ergy of the modes they ...the flow they could prevent energy production in all ...
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A study of turbulence in open channel flow.
... in open channel flows is due to the higher background turbulence intensity and the lower values of ...the open channel flow data can be compared to standardized flows such as ...
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Study Of Dynamic Field Around A Vertical Circular Cylinder Placed In An Open-Chanel Flow
... a turbulent flow around a vertical circular cylinder placed in an ...the flow imposed by Istiarto [6], in his experimental ...the flow dynamic around a vertical circular ...
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Significance of Different Flow, Channel and Bed Conditions in Estimation of Open Channel Flow Resistance
... mean flow and turbulence characteristics of open channel T-diversion ...main channel, as well as the downstream region of a branch ...the channel diversion region, where ...
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Turbulent Structure in Open Channel Flow
... uniform open channel flow data reported by Roussinova et ...the channel aspect ratio on different smooth open channel flow (OCF) velocity profiles and showed that all ...
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Analysis of Flow Resistance for Different Bed Materials with Varying Discharge Experimentally in Open Channels
... in open channel ...the flow in open channel is effected by the wall roughness of the channel, the cross sectional area as well as the roughness and viscosity of the bed ...
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The behaviour of turbulence in unsteady open channel flow
... E.13 Velocity and turbulent intensity vertical profile data for S90 E.14 Steady flow snapshot data... Wetted cross-sectional area.[r] ...
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Wake characteristics of single and tandem emergent cylinders in shallow open channel flow
... overall drag estimate. For example, aircraft manufacturers would prefer to perform simulations using a smaller value of κ, since the fuel consumption would appear to be more economical than a competitor's estimate with ...
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Incompressible SPH simulation of open channel flow over smooth bed
... different flow depths are fitted to the semi-analytical results for the rough bed turbulent flows (Cheng, 2007) in ...bed turbulent flow velocity profiles can be reflected by the index m in ...
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Spectral-element simulations of variable-density turbulent flow in a plane channel
... The accuracy of numerical simulations hardly relies on the chosen discretization method. In the present work we employ spectral-element approach [1] which combines the accuracy of spectral methods and flexibility of ...
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Dynamics of single, non-spherical ellipsoidal particles in a turbulent channel flow
... shear flow under Stokes conditions, Jeffery (1922) showed that the axis of symmetry of a spheroid performs a periodic motion on a closed orbit, the so-called “Jeffery” ...arbitrary flow fields, however, ...
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The Effect of Near Wall Vortices on Wall Shear Stress in Turbulent Boundary Layers
... changed the near-wall streamwise vortices and achieved the purpose of control of the wall shear stress [6-8]. Though the detailed mechanism has not been completely clear so far, the above-mentioned control methods have ...
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Large eddy simulation of microbubble transport in a turbulent horizontal channel flow
... and turbulent stress profiles insignificantly different from the corresponding single-phase ...and turbulent stresses of the bubbles are almost identical to those of the continuous phase, and of ...lower ...
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Large Eddy Simulation of Deposition of Anisotropic Particles in a Turbulent Channel Flow
... the flow field is ob- tained from direct numerical simulation (DNS) (Ounis et al, 1993; Zhang and Ahmadi, 2000; Zhang et al, 2001) or large eddy simulation (LES), together with sub-grid scale (SGS) ve- locity ...
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Effect of Reynolds number on particle interaction and agglomeration in turbulent channel flow
... the flow that advantages the particles exposed to higher Reynolds numbers in the formation of ...the channel walls; in such regions the number of contacts formed is proportionally higher for particles of ...
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