Results 21 to 30 of about 59,389 (269)

Fibonacci Turbulence [PDF]

open access: yesPhysical Review X, 2021
Never is the difference between thermal equilibrium and turbulence so dramatic, as when a quadratic invariant makes the equilibrium statistics exactly Gaussian with independently fluctuating modes. That happens in two very different yet deeply connected classes of systems: incompressible hydrodynamics and resonantly interacting waves.
Vladimirova, Natalia   +2 more
openaire   +3 more sources

Sound Radiation of Aerodynamically Excited Flat Plates into Cavities

open access: yesApplied Sciences, 2017
Flow-induced vibrations and the sound radiation of flexible plate structures of different thickness mounted in a rigid plate are experimentally investigated.
Johannes Osterziel   +2 more
doaj   +1 more source

Turbulence dynamics near a turbulent/non-turbulent interface [PDF]

open access: yesJournal of Fluid Mechanics, 2012
AbstractThe characteristics of the boundary layer separating a turbulence region from an irrotational (or non-turbulent) flow region are investigated using rapid distortion theory (RDT). The turbulence region is approximated as homogeneous and isotropic far away from the bounding turbulent/non-turbulent (T/NT) interface, which is assumed to remain ...
Teixeira, Miguel A. C., da Silva, C. B.
openaire   +2 more sources

Enhancement in heat transfer characteristics by using truncated conical turbulators in a double pipe heat exchanger under turbulent conditions

open access: yesCogent Engineering, 2023
The rising use of fossil fuels has had major environmental impacts, including global warming, pollution, and higher heating system costs. This emphasizes the need of increasing the efficiency of equipments such as heat exchangers used in heating and air ...
Shiva Kumar   +3 more
doaj   +1 more source

Turbulence strength in ultimate Taylor–Couette turbulence [PDF]

open access: yesJournal of Fluid Mechanics, 2017
We provide experimental measurements for the effective scaling of the Taylor–Reynolds number within the bulk $\mathit{Re}_{\unicode[STIX]{x1D706},\mathit{bulk}}$, based on local flow quantities as a function of the driving strength (expressed as the Taylor number $\mathit{Ta}$), in the ultimate regime of Taylor–Couette flow.
Rodrigo Ezeta   +3 more
openaire   +5 more sources

Heat Transfer Enhancement of TiO2/Water Nanofluid at Laminar and Turbulent Flows: A Numerical Approach for Evaluating the Effect of Nanoparticle Loadings

open access: yesEnergies, 2018
Titania-based nanofluid flowing inside a circular tube under the boundary condition of a horizontal uniformly heated wall was investigated numerically for both laminar and turbulent flows.
Budi Kristiawan   +4 more
doaj   +1 more source

A Comparative Study of Finite Journal Bearing in Laminar and Turbulent Regimes Using CFD (Computational Fluid Dynamic)

open access: yesMATEC Web of Conferences, 2016
In this paper, an investigation of hydrodynamic performance for journal bearing lubricated by thin film is performed by three-dimensional CFD (computational fluid dynamic). Two regimes, i.e. laminar and turbulent regimes are of main interest. The sliding
Susilowati   +4 more
doaj   +1 more source

Enhancement of turbulence and nutrient fluxes within an Eastern Boundary Upwelling Filament: a diapycnal entrainment approach

open access: yesFrontiers in Marine Science, 2023
The filaments of the African Eastern Boundary Upwelling System (EBUS) are responsible for feeding nutrients to the oligotrophic waters of the northeastern Atlantic.
Sheila N. Estrada-Allis   +6 more
doaj   +1 more source

EXPERIMENTAL STUDY ON THE FLUID FLOWIN THE CONDUCTS [PDF]

open access: yesAnalele Universităţii "Constantin Brâncuşi" din Târgu Jiu: Seria Inginerie, 2018
Fluids are high mobility environments that, under the action of external forces, are continuously and irreversibly deformed. The flow of fluid through a pipe is ensured by a pressure difference between its ends. The presented paper aims to experimentally
Florin Ciofu
doaj  

Dynamic properties of the dynamical system SFnm(X), SFnm(f))

open access: yesApplied General Topology, 2020
Let X be a continuum and let n be a positive integer. We consider the hyperspaces Fn(X) and SFn(X). If m is an integer such that n > m ≥ 1, we consider the quotient space SFnm(X). For a given map f : X → X, we consider the induced maps Fn(f) : Fn(X) → Fn(
Franco Barragán   +2 more
doaj   +1 more source

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