Fully Turbulent Flow Channel
Design specification, commission and calibration of the University of Strathclyde's Fully Turbulent Flow Channel (FTFC) facility
... new Fully Turbulent Flow Channel was designed and manufactured for the University of Strathclyde, and a campaign of measurements for its calibration was carried out based on hydraulically ...
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Mean-speed measurements in two-dimensional, incompressible, fully-developed turbulent channel flow
... Slope ot Velocity Profile at the Wall S1noe the aocuraoy of the aemi-logar1thmlo plots or the velooity profiles reeta almost completely upon the values OL ~ 0 it will • be ot interest to[r] ...
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On Coherent Structures of Turbulent Open-channel Flow Above a Rough Bed
... sweep and ejection events [15, 16]. In early 2000s, following studies indicated that sweep and ejection events are part of a larger coherent structures which could be called hairpin vortex [11, 17]. In Figure 1, scheme ...
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Flow resistance in natural, turbulent channel flows: The need for a fluvial fluid mechanics
... Detached eddy simulation [Spalart and Allmaras, 1994] aims to model those vortices away from boundaries explicitly, while treating those near to, or attached to surfaces in a statistical sense. It is based on a one ...
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Dynamics of single, non-spherical ellipsoidal particles in a turbulent channel flow
... a turbulent channel ...a fully developed gas- solid flow at a shear Reynolds number Re = ...that turbulent dispersion forces non-spherical particles to have a broad orientation ...
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Turbulent structures in smooth and rough open channel flows: effect of depth
... In fully 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 = ...open channel ...
204
NUMERICAL SIMULATION OF TURBULENT FLOW IN A RECTANGULAR CHANNEL WITH PERIODICALLY MOUNTED LONGITUDINAL VORTEX GENERATORS
... considers channel flow as the base flow with rectangular winglet pair as the vortex ...the flow unsteady and induce early transition to ...and fully developed channel flow ...
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Large-Eddy Simulations of Fully Developed Turbulent Channel and Pipe Flows with Smooth and Rough Walls
... Two conditions that are abundant in environmental and engineering fluid flows are those bounded by solid walls with surface roughness and flows exhibiting high Reynolds number turbulence [52, 68]. Both the study of ...
120
Turbulent channel flow near maximum drag reduction: simulations, experiments and mechanisms
... To compute the various viscoelastic flows we use the following procedure. First a computation of the Newtonian fluid is carried out by running the code without the FENE-P model until a steady state is reached. The polymer ...
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Effect of Reynolds number on particle interaction and agglomeration in turbulent channel flow
... In this section some of the most relevant statistics for the fluid phase are presented and discussed to benchmark the performance of the LES approach. It is important to mention here that all fluid velocity statistics ...
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Large eddy simulation of microbubble transport in a turbulent horizontal channel flow
... a fully developed single-phase turbulent channel flow was obtained at shear Reynolds numbers of 150 and 590, with water as the carrier phase fluid with kinematic viscosity and density ...a ...
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Preferential Concentration of Inertial Fibres in a Turbulent Channel Flow
... Abstract. Large eddy simulation (LES) is developed to study particle preferential concentration, in which an initially uniform distribution of inertial particles spontaneously segregates into clusters in a ...
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Large-eddy Simulation of Turbulent Boundary Layers with Spatially Varying Roughness
... Techniques such as hot-wire anemometry, particle image velocimetry, floating ele- ment balances, Preston-tube methods and oil-film interferometry have been devel- oped to enable observations and analysis of specific ...
132
Verification of 3 D stereoscopic PIV operation and procedures
... Abstract — Particle image velocimetry (PIV) is a non- intrusive, whole-field velocity measurement technique that has been used since the mid-1980s. The accuracy, flexibility and versatility offered by PIV systems have ...
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Numerical simulation of boundary layer control using MEMS actuation
... of turbulent channel numerical simulation flow was used as a testing ground for a simple distributed control scheme.In an spanwise highlow-speed the to attempt cancel and streaks, wall v[r] ...
298
Large Eddy Simulation of Deposition of Anisotropic Particles in a Turbulent Channel Flow
... a turbulent channel flow with a specified fluid ...the flow is highly turbulent and the rota- tional dynamics, alignment trends and deposi- tion of anisotropic particles (needles, ...
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CFD Analysis for Thermal Behavior of Turbulent Channel Flow of Different Geometry of Bottom Plate
... Fig.7-9 shows X-velocity contours at Re = 6000 for B/H ratio 1, 1.25 and 1.5 of trapezoidal grooved, ribbed and rib-grooved respectively. It can be visible that the largest re-circulation zone can be found in the groove ...
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Implicit large eddy simulation of weakly-compressible turbulent channel flow
... of turbulent channel flows using DNS, classical LES and DES, ILES investigations are still limited in number ...compressible turbulent channel ...weakly-compressible, turbulent ...
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Tools for developing continuous flow micro mixer : numerical simulation of transitional flow in micro geometries and a quantitative technique for extracting dynamic information from micro bubble images
... Applied and validated a suitable numerical approach for simulating rectangular microchannel across the entire flow regimes including the laminar, transitional and fully turbulent flows..[r] ...
219
A generalised optimisation principle for asymmetric branching in fluidic networks
... cylindrical channel, the volumetric flow rate Q is proportional to R 3 ...and channel contractions) are negligible compared with the pressure losses over the channel lengths, this principle is ...
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