Results 21 to 30 of about 455,438 (280)

Effect of the Inlet Boundary Conditions on the Flow over Complex Terrain Using Large Eddy Simulation

open access: yesDesigns, 2021
For large eddy simulation, it is critical to choose the suitable turbulent inlet boundary condition as it significantly affects the calculated flow field.
Yi Wang   +4 more
doaj   +1 more source

Simulation of Three-Dimensional Flow Field around Unconventional Bridge Piers [PDF]

open access: yesEurasian Journal of Science and Engineering, 2017
The study presents a three-dimensional numerical simulation of turbulent flow field around unconventional bridge piers which are downstream-facing round- nosed (DS-FRNP) and upstream- facing round- nosed (US-FRNP) and are compared with a circular pier in
Adnan Ismael   +3 more
doaj   +1 more source

Laminar-Turbulent Transition of an Inlet Boundary Layer in a Circular Pipe Induced by Periodic Ejection

open access: yesJournal of Fluid Science and Technology, 2011
The laminar-turbulent transition of a boundary layer induced by jet flow ejection in the inlet region of a circular pipe was experimentally investigated.
Masashi ICHIMIYA   +2 more
doaj   +1 more source

Velocity distribution and hydrodynamic drag in turbulent flow [PDF]

open access: yesE3S Web of Conferences, 2023
This work aims to study the vertical velocity distribution in the near-wall layer of a pipe, channel, and boundary layer of a flat plate because these issues are of great practical and theoretical importance.
Ignatenko Evgenii   +2 more
doaj   +1 more source

Modification of energetic modes for transitional flow control

open access: yesAIP Advances, 2022
We introduce a mechanism of using collocated serpentine shaped plasma actuators for controlling the flow via an input electrical signal to either advance or delay transition by amplification or annihilation of energetic modes of turbulent structures.
Arnob Das Gupta, Subrata Roy
doaj   +1 more source

Turbulent flow in graphene

open access: yes, 2010
We demonstrate the possibility of a turbulent flow of electrons in graphene in the hydrodynamic region, by calculating the corresponding turbulent probability density function.
Kumar S. Gupta   +3 more
core   +1 more source

Transitions of turbulent superstructures in generalized Kolmogorov flow

open access: yesPhysical Review Research, 2021
Self-organized large-scale flow structures occur in a wide range of turbulent flows. Yet, their emergence, dynamics, and interplay with small-scale turbulence are not well understood.
Cristian C. Lalescu, Michael Wilczek
doaj   +1 more source

Model-based design of transverse wall oscillations for turbulent drag reduction

open access: yes, 2012
Over the last two decades, both experiments and simulations have demonstrated that transverse wall oscillations with properly selected amplitude and frequency can reduce turbulent drag by as much as 40%.
Jovanović, Mihailo R., Moarref, Rashad
core   +1 more source

Turbulent energy motion of fiber suspensions in a rotating frame

open access: yesAlexandria Engineering Journal, 2021
Turbulent flows play a major role in many fields of science and industry. Noticeable attention is seen on turbulent flows of suspending fibers because of the sensitivity of the electrical, thermal, and mechanical properties of the connecting fiber ...
S.F. Ahmed   +3 more
doaj   +1 more source

Numerical study of turbulent flow under different flow mixing devices in a scaled-down reactor pressure vessel model

open access: yesNuclear Engineering and Technology
Turbulent flow in reactor pressure vessel (RPV) of pressurized water reactor (PWR) is complicated because the complex geometry in RPV. The flow rates through fuel assemblies at core inlet are strongly influenced by different designs of flow mixing ...
Wenhai Qu   +6 more
doaj   +1 more source

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