Reynolds Stress
Measurements of Reynolds Stress in a wind driven lagoonal estuary
... the Reynolds stress was calculated per bin (Figure 11). Reynolds stress is clearly a monotonically decreasing function of Richardson number for Richardson numbers between zero and about ...
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A Theoretical Solution for the Reynolds Stress: Validations in Canonical Flow Geometries
... the Reynolds stress in simple flow geometries, leading to an “integral ...the Reynolds stress based on inputs of root turbulence para- meters, such as streamwise component of the turbulence ...
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Using the Reynolds stress model to predict shock-induced separation on transport aircraft
... Additional results about the wing-body of the NASA Common Research Model at flight conditions derived from those of the AIAA Computational Fluid Dynamics Drag Prediction Workshop are introduced in this paper. An initial ...
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Development of a Low Cost and Safe PIV for Mean Flow Velocity and Reynolds Stress Measurements
... and Reynolds stress of each experiment were ...and Reynolds stress distribution in the boundary ...the Reynolds averaged Navier-Stokes equations and the k-ε turbulence model of FLUENT ...
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THREE DIMENSIONAL NUMERICAL MODELINGOF BARAK RIVERUSING REYNOLDS STRESS MODEL
... individual Reynolds stresses in the two equation models are overcome by the 7 equation Reynolds stress model particularly in flows with complex strain fields and significant body ...the ...
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Experimental and numerical investigation of bottom outlet hydraulic model
... k-ε, Reynolds Stress Model, RSM, and turbulence models are used, and the results are ...the Reynolds Stress and turbulence models rather than the k-ε turbulence ...
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Direct numerical simulation of a decelerated wall bounded turbulent shear flow
... The turbulence-modelling challenge for this flow is the manner in which a typical strain field, weak compared to the mean shear, profoundly influences the turbulence in the outer layer – before alterations diffuse there from ...
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Basal interstitial water pressure in laboratory debris flows over a rigid bed in an open channel
... Reynolds stress with increasing mixing length in the inter- stitial water, where the strong shear of sediment particles induces turbulence. As shown in this study, the excess in- terstitial water pressure ...
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Singular modes in Rayleigh instability of three-dimensional streamwise-vortex flows
... In the context of linear secondary instability u ! is treated as a given function of y and z with the slow variable X playing the role of a parameter. One main interest is then in the fastest growing modes, but for ...
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Micro Particles Transport and Deposition in Realistic Geometry of Human Upper Airways
... In this study, the inhaled airflow in human upper airways is simulated using the Reynolds stress transport turbulence model in order to capture the anisotropic feature of the flow field. Furthermore, the ...
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Assessing spacing impact on coherent features in a wind turbine array boundary layer
... velocity, Reynolds shear stress, and power ...The Reynolds stresses are reconstructed from a POD basis, demonstrating variation in rates of convergence according to wind turbine ...the ...
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Heat transfer measurements and CFD simulations of an impinging jet
... closure Reynolds Stress models with our implementation of the explicit algebraic model for the anisotropic turbulent heat flux were not able to get better agreement with experimental ...
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COMPUTATIONAL INVESTIGATION OF FREE SURFACE FLOW AROUND A SHIP HULL
... The commercial CFD software FLUENT V6.3 was utilized for analysis. The VOF technique was used for capturing the free surface and Reynolds Stress Model was adopted for turbulence closure. The mesh quality ...
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On the Reynolds-averaged Navier-Stokes Equations
... the Reynolds-Averaged Navier-Stokes equations ...the Reynolds stress ...the Reynolds stress tensor has six unknowns; however, this paper shows that the Reynolds stress ...
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Discrete Tracer Point Method to Evaluate Turbulent Diffusion in Circular Pipe Flow
... Diffusion of a solute in turbulent flows through a circular pipe or tunnel is an important aspect of environmental safety. In this study, the diffusion coefficient of turbulent flow in circular pipe has been simulated by ...
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An investigation of turbulent steady streaming by large eddy simulation
... generated Reynolds stress over a given wave ...the Reynolds stresses gen- erated during the crest and trough half-cycles are equal and ...opposing Reynolds stresses are averaged to zero over ...
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Influence of relative submergence on spatial variance and form-induced stress of gravel-bed flows
... in Reynolds stress has a number of implications for measuring bed shear ...shear stress experi- enced by some parts of the bed will be different from ...shear stress acting upon the boundary ...
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Fast Low-to-High Confinement Mode Bifurcation Dynamics in a Tokamak Edge Plasma Gyrokinetic Simulation
... flux to the edge of the plasma, thus raising the edge gradients, results in stronger turbulence (prey). The increased turbu- lence can then amplify the sheared poloidal flow (predator) nonlinearly through the turbulent ...
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Turbulent slurry flow measurement using ultrasonic Doppler method in rectangular pipe
... Three different positions of the UVP probes were used (Figure 2). The angle of the transducers to the main flow normal (transducer 1 and 3) was 25 degree. However, the resulting active angle was estimated to 19 degree ...
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A COMPARATIVE STUDY WITH FLOW VISUALIZATION OF TURBULENT FLUID FLOW IN AN ELBOW
... In the Figures 2 and 3 the streamline contour and vector contour are plotted respectively for k- model. There exist four recirculation zones in totality. First one is at the lower limb corner, Second recirculation zone ...
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