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Laminar and Turbulent Flows

Laminar and turbulent flows over hydrophobic surfaces with shear-dependent slip length

Laminar and turbulent flows over hydrophobic surfaces with shear-dependent slip length

... P. Laminar and turbulent flows over hydrophobic surfaces with shear-dependent slip length, ...study flows over hydrophobic surfaces with shear-dependent slip lengths and we report their ...

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Program NATCON: For the numerical solution of buoyancy-driven laminar and turbulent flows in differentially heated cavities

Program NATCON: For the numerical solution of buoyancy-driven laminar and turbulent flows in differentially heated cavities

... The program has a provision to solve steady and unsteady problems with laminar or turbulent flows. The standard k- ε model originally proposed by Harlow and Nakayama (1967) with some modification for ...

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Modelling dispersion in laminar and turbulent flows in an open channel based on centre manifolds using 1D-IRBFN method

Modelling dispersion in laminar and turbulent flows in an open channel based on centre manifolds using 1D-IRBFN method

... 7. Conclusion The shear dispersion of contaminant based on centre manifold theory is successfully simulated by using the 1D-IRBFN method. The numerical solu- tion of the derived 1-D (one-zone and two-zone) model ...

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Comparative Pressure Drop in Laminar and Turbulent Flows in Circular Pipe with and without Baffles using FEV

Comparative Pressure Drop in Laminar and Turbulent Flows in Circular Pipe with and without Baffles using FEV

... of laminar and turbulent is very important in flow control and must be preceded by a study of the flow instability associated with the specific flow ...in laminar and turbulent adequate ...

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The disappearance of laminar and turbulent wakes in complex flows

The disappearance of laminar and turbulent wakes in complex flows

... 5. Concluding remarks In this paper, we have examined the widespread phenomenon of wake disappear- ance, which occurs when the wake is confined, due to the action of a positive straining field, or to wakes diffusing into ...

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The disappearance of viscous and laminar wakes in complex flows

The disappearance of viscous and laminar wakes in complex flows

... 5. Concluding remarks In this paper, we have examined the widespread phenomenon of wake disappear- ance, which occurs when the wake is confined, due to the action of a positive straining field, or to wakes diffusing into ...

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Investigation of Benchmark Turbulent Flows

Investigation of Benchmark Turbulent Flows

... for laminar flows, do not pose any significant ...the turbulent flows, simulation becomes problematic because of the inherent source ...with flows at low Reynolds ...

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Comparison Of Laminar And Turbulent Model Of Water Flow In Microchannel

Comparison Of Laminar And Turbulent Model Of Water Flow In Microchannel

... 10 Yong-Hui Wang et al. (2017) stated that the Reynolds number is the ratio of inertial forces to viscous forces within a fluid which is subjected to relative internal movement due to different fluid velocities, in which ...

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Modelling, Simulation and Control of Turbulent Flows

Modelling, Simulation and Control of Turbulent Flows

... to laminar flows where changes in properties are smooth and deterministic and perturbations decay over ...within turbulent boundary layers, and what part do they play in the turbulence regeneration ...

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On Numerical Simulation of Turbulent Flows and Combustion

On Numerical Simulation of Turbulent Flows and Combustion

... t Turbulent separated planar bluff-body flows were numerically analyzed using the state-of-the-art Open- FOAM and ANSYS FLUENT technologies, based on the conventional URANS ...as laminar and turbulent ...

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Turbulent laminar patterns in shear flows without walls

Turbulent laminar patterns in shear flows without walls

... its laminar flow. In the turbulent regime, however, the mean shear is far from ...the turbulent mean shear is nearly constant at transitional Reynolds ...

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Interactions of shock tube exhaust flows with laminar and turbulent flames

Interactions of shock tube exhaust flows with laminar and turbulent flames

... Figure 10 presents a type III interaction where the flame is again located 25 d in the x-direction, but with a lateral offset of 5 d in the y-direction. Compared to the previous case in fig. 9, the distinctive difference ...

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Laminar-to-turbulent transition of pipe flows through puffs and slugs

Laminar-to-turbulent transition of pipe flows through puffs and slugs

... 2008) Laminar-to-turbulent transition of pipe flows occurs, for sufficiently high Reynolds numbers, in the form of ...developed turbulent pipe ...the laminar-to-turbulent transition occurs ...

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Assessment of self-adapting local projection-based solvers for laminar and turbulent industrial flows

Assessment of self-adapting local projection-based solvers for laminar and turbulent industrial flows

... On the one hand, we focus on the high-order term-by-term stabilization method in- troduced in (cf. [1]) for the Oseen equations. This method is developed by a purely nu- merical approach that does not require any ad-hoc ...

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Mathematical Modeling of Laminar and Turbulent Single-phase and Two-phase Flows in Straight and Helical Ducts

Mathematical Modeling of Laminar and Turbulent Single-phase and Two-phase Flows in Straight and Helical Ducts

... 5.5 C ONCLUSIONS Helical pipes have the advantage of greater heat transfer compared to straight pipes due to heat transfer enhancement by the secondary flow. Heat transfer in the fully developed laminar ...

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The effect of neutrally buoyant finite-size particles on channel flows in the laminar-turbulent transition regime

The effect of neutrally buoyant finite-size particles on channel flows in the laminar-turbulent transition regime

... the laminar-turbulent transition is simulated with the Force Coupling Method which allows two-way cou- pling with the flow ...becomes laminar, the wall friction coefficient recovers the evolution of ...

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Comparison of several models of the laminar/turbulent transition

Comparison of several models of the laminar/turbulent transition

... the laminar/turbulent transition using several transition ...boundary-layer flows with various free stream turbulence and the flow over an airfoil including the effect of foregoing wake on the ...

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Estimation of the Shear-Induced Lift Force on a Single Bubble in Laminar and Turbulent Shear Flows Using Interface Tracking Approach

Estimation of the Shear-Induced Lift Force on a Single Bubble in Laminar and Turbulent Shear Flows Using Interface Tracking Approach

... shear turbulent flow simulations have also been conducted to observe bubble-turbulence ...high turbulent shear rates of 236 s -1 and 470 s -1 ...shear flows to ...

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Laminar to Turbulent Transition in Cylindrical Pipes

Laminar to Turbulent Transition in Cylindrical Pipes

... Controversy to Reyleigh Theorem 1 z It is valid only in the case where the disturbance amplified by a 2D wave is necessarily 2D z After break down of the T-S wave in the 2D parallel flows the disturbance becomes ...

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Modeling Turbulent Flows

Modeling Turbulent Flows

... z Standard wall function method is to take advantage of the fact that (for equilibrium turbulent boundary layers), a log-law correlation can supply the required wall boundary conditions (as illustrated in the ...

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