Turbulent channel flow
Hairpin vortices in turbulent channel flow
... Abstract The phenomenon of birth and development of hairpin vortices in the wall region of turbulent channel flow is investigated numerically. The system of the Navier-Stokes equations is integrated ...
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Numerical simulation of a turbulent channel flow with an acoustic liner
... compressible turbulent channel flow with an acoustic impedance boundary condition are performed to assess how the flow is modi- fied compared with a channel flow with rigid ...
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Solid Particles Injection in Gas Turbulent Channel Flow
... gas turbulent flow laden with solid ...gas turbulent channel flow at different condition is ...most flow conditions even at low mass ratio, the particle shape, density and size ...
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Passivity-Based Output-Feedback Control of Turbulent Channel Flow
... reduce turbulent fluctuations, and therefore skin- friction drag, in wall-bounded turbulent fluid flows, that nonetheless gives performance guarantees in the nonlinear turbulent ...the ...
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Nonlinear optimal large-scale structures in turbulent channel flow
... in turbulent shear flows take the form of packets of hairpin vortices reaching the outer region of the boundary layer along with streaks of different size, going from the near-wall to the outer ...a ...
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The effect of inlet turbulence on the quiescent core of turbulent channel flow
... of turbulent channel flow is investigated using particle image ...a channel, where different turbulence intensities were generated at the inlet with an active ...the turbulent ...
Dynamics of single, non-spherical ellipsoidal particles in a turbulent channel flow
... a turbulent channel ...solid flow at a shear Reynolds number Re = ...that turbulent dispersion forces non-spherical particles to have a broad orientation ...
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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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Implicit large eddy simulation of weakly-compressible turbulent channel flow
... weakly-compressible turbulent channel ...profiles, turbulent shear stresses and higher- order turbulent statistics reveal that the low Mach correction can significantly reduce the numerical ...
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Direct numerical simulation of turbulent channel flow over porous walls
... a turbulent channel flow over porous ...the flow is governed by the incompressible Navier–Stokes (NS) equations, while in the porous layers the volume-averaged Navier–Stokes (VANS) equations ...
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Implicit large eddy simulation of weakly-compressible turbulent channel flow
... weakly-compressible turbulent channel ...profiles, turbulent shear stresses and higher- order turbulent statistics reveal that the low Mach correction can significantly reduce the numerical ...
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Turbulent channel flow over an anisotropic porous wall - drag increase and reduction
... e Flow Centre and SeRC, KTH Mechanics, Stockholm, Sweden 2 School of Mathematics, Computer Science and ...a turbulent channel flow bounded by porous walls is explored using a set of direct ...
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Quadrant and Conditional Analyses of Non-spherical Particle Segregation in a Turbulent Channel Flow
... The turbulent channel flow into which particles were injected was represented using a computational domain (2h×2hπ×4hπ) that was discretized with (129×128×128) nodes, where the (x×y×z) axes are in ...
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Fully coupled LES-DEM of particle interaction and agglomeration in a turbulent channel flow
... two-phase channel flows, it is clear that the DNS studies performed are for low Reynolds number flows, and hence LES is required if high Reynolds numbers flows of practical relevance are to be accurately ...a ...
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Temporal acceleration of a turbulent channel flow
... a flow rate higher than that in the test ...honeycomb flow straightener was located at the inlet to the test ...swirling flow structures from upstream, thereby straightening the flow and ...
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Temporal acceleration of a turbulent channel flow
... a flow accelerating from an initially turbulent state following the opening of a valve, together with large eddy simulations of the experiments and extended Stokes first problem solutions for the early ...
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Particle-Interaction Effects in Turbulent Channel Flow
... instantaneous flow field was considered to be periodic along the streamwise and spanwise directions, with a constant mass flux through the channel in the streamwise direction which was maintained by a ...
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DNS of a hot-wire anemometer in a turbulent channel flow
... The channel flow with the large wire (l w = 100 + ), which allows a signif- icantly longer time step, has been let evolve for around 4 π h/U ∞ ...lent channel flow, particularly with the small ...
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Preferential Concentration of Inertial Fibres in a Turbulent Channel Flow
... concentration, Channel flow, ...in turbulent flows has many industrial, environmental and biomedical ...core flow due to turbulence and inertia, as well as to obtain a quantitative measure of ...
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Compressible turbulent channel flow with impedance boundary conditions
... buffer-layer turbulent coher- ent ...near-wall turbulent structure leads to a significant increase in the Reynolds shear stress near the ...altered turbulent structure are observed by changing the ...
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