Results 11 to 20 of about 29,832 (302)

Numerical Simulation of Supersonic Turbulent Separated Flows Based on k–ω Turbulence Models with Different Compressibility Corrections

open access: yesAerospace, 2023
The accurate prediction of supersonic turbulent separated flows involved in aerospace vehicles is a great challenge for current numerical simulations.
Dahai Luo
doaj   +1 more source

Nocturnal atmospheric conditions and their impact on air pollutant concentrations in the city of Stuttgart

open access: yesMeteorological Applications, 2021
Meteorological and air pollutant measurements were conducted in the area of Stuttgart during winter and summer seasons. Stuttgart is situated in moderate mountainous terrain in southwestern Germany.
Olga Kiseleva   +5 more
doaj   +1 more source

Turbulence in forced stratified shear flows

open access: yesJournal of Fluid Mechanics, 2020
Continuously forced, stratified shear flows occur in many geophysical systems, including flow over sills, through fjords and at the mouths of rivers and estuaries.
Katherine M. Smith   +2 more
semanticscholar   +1 more source

A shear stress transport incorporated elliptic blending turbulence model applied to near-wall, separated and impinging jet flows and heat transfer

open access: yesComputers and Mathematics with Applications, 2020
An elliptic blending turbulence model, integrating the Shear Stress Transport (SST) characteristics in boundary layer together, is developed and validated.
X. L. Yang, Yang Liu, L. Yang
semanticscholar   +1 more source

Anisotropic fluctuations in turbulent shear flows [PDF]

open access: yesPhysics of Fluids, 2004
An experimental analysis of small-scale anisotropic fluctuations has been performed in two different flows in order to assess possible universal features of shear dominated turbulence, such as the decay rate of anisotropy at small scales and the recovery of isotropy.
JACOB, Boris Francesco   +3 more
openaire   +4 more sources

Metastability of Kolmogorov Flows and Inviscid Damping of Shear Flows [PDF]

open access: yesArchive for Rational Mechanics and Analysis, 2017
First, we consider Kolmogorov flow (a shear flow with a sinusoidal velocity profile) for 2D Navier–Stokes equation on a torus. Such flows, also called bar states, have been numerically observed as one type of metastable state in the study of 2D ...
Zhiwu Lin, Mingxi Xu
semanticscholar   +1 more source

Modeling of Turbulent Free Shear Flows [PDF]

open access: yes21st AIAA Computational Fluid Dynamics Conference, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yoder, D. A.   +2 more
openaire   +1 more source

Impact of turbulence on aeolian particle entrainment: results from wind-tunnel experiments [PDF]

open access: yesAtmospheric Chemistry and Physics, 2022
We hypothesize that large eddies play a major role in the entrainment of aeolian particles. To test this, wind-tunnel experiments are carried out to measure the particle entrainment rate for various sizes and flow conditions.
J. Zhang   +8 more
doaj   +1 more source

Transition to turbulence in a shear flow

open access: yesPhysical Review E, 1999
We analyze the properties of a 19 dimensional Galerkin approximation to a parallel shear flow. The laminar flow with a sinusoidal shape is stable for all Reynolds numbers Re. For sufficiently large Re additional stationary flows occur; they are all unstable.
Eckhardt, Bruno, Mersmann, Alois
openaire   +3 more sources

Nonlinear transverse cascade and two-dimensional magnetohydrodynamic subcritical turbulence in plane shear flows. [PDF]

open access: yesPhysical review. E, Statistical, nonlinear, and soft matter physics, 2014
We find and investigate via numerical simulations self-sustained two-dimensional turbulence in a magnetohydrodynamic flow with a maximally simple configuration: plane, noninflectional (with a constant shear of velocity), and threaded by a parallel ...
G. Mamatsashvili   +3 more
semanticscholar   +1 more source

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