Results 1 to 10 of about 291,158 (204)

Experimental research of incipient turbulent flow frequency spectra in hydrodynamic unsteadiness [PDF]

open access: yesINCAS Bulletin, 2021
Hydraulic and heat transfer processes play a very important role in the design and prototyping of aerospace technology. Unsteady conditions are the peculiarity of mostly aerospace systems.
Viacheslav KRAEV
doaj   +1 more source

Experimental research of turbulent flow frequency spectra [PDF]

open access: yesINCAS Bulletin, 2020
Hydraulic and heat transfer processes play a very important role in the design and prototyping of aerospace technology. In most cases this technique works under non-isothermal conditions.
Viacheslav KRAEV
doaj   +1 more source

A review on turbulent flow over rough surfaces: Fundamentals and theories

open access: yesInternational Journal of Thermofluids, 2021
Surface roughness can significantly influence the fluid dynamics and heat transfer in convective flows by inducing perturbations in the velocity profile which affect surface drag, turbulent mixing and heat transfer.
Mohammadreza Kadivar   +2 more
doaj   +1 more source

The unsteady turbulent flows structure study present status [PDF]

open access: yesINCAS Bulletin, 2019
The processes of heat transfer and hydraulic plays a very important role in the design and prototyping of aerospace technology. In most cases this technique works under significant unsteady conditions. Steady approach for unsteady processes leads to high
Viacheslav KRAEV, Alexander MYAKOCHIN
doaj   +1 more source

Turbulent flow interacting with flexible trawl net structure including simulation catch in flume tank

open access: yesScientific Reports, 2023
The interaction between fluid and the midwater trawl with stocked catches is extremely complex, but essential to improve the understanding of the drag force acting on the trawl, the behavior of the fishing structure during a trawling process, and to ...
Bruno Thierry Nyatchouba Nsangue   +4 more
doaj   +1 more source

Turbulent Structures in Gap Flow

open access: yesCFD Letters, 2022
A computational study was carried out to investigate the effect of the gap between the body and the bed on the wake characteristics in shallow flows. A sharp-edged bluff body with two different clearances from the bed is employed in this investigation.
null Ghassan Nasif   +3 more
openaire   +2 more sources

Laminarization of inhomogeneous turbulent channel flow under stable density stratification

open access: yesJournal of Fluid Science and Technology, 2021
Effects of buoyancy force stabilizing the disturbances are investigated on a turbulent channel flow bounded by two walls of different temperatures. With a constant mean pressure gradient imposed, the buoyancy force related to the Grashof number (Gr) is ...
Oaki IIDA, Yoshito NAGASE
doaj   +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

Resolved energy budget of superstructures in Rayleigh-B\'{e}nard convection [PDF]

open access: yes, 2020
Turbulent superstructures, i.e. large-scale flow structures in turbulent flows, play a crucial role in many geo- and astrophysical settings. In turbulent Rayleigh-B\'{e}nard convection, for example, horizontally extended coherent large-scale convection ...
Green, Gerrit   +3 more
core   +3 more sources

Effects of polymer addition on transition and length scales of flow structures in transitional channel flow

open access: yesJournal of Fluid Science and Technology, 2023
The effect of polymer addition on transition to turbulence in a two-dimensional water-flow channel was experimentally investigated by flow visualization using reflective flakes.
Sattaya YIMPRASERT   +3 more
doaj   +1 more source

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