Results 1 to 10 of about 11,611 (266)

Turbulence and diffusion in stratified flows.

open access: yesGeofísica Internacional, 1975
En este trabajo se presentan: Criterios de estabilidad hidrodinámica para flujos estratificados. La teoría de similitud para la turbulencia en flujos estratificados cizallantes.
A. S. Monin
doaj   +3 more sources

Mechanisms of Lateral Spreading in a Near-Field Buoyant River Plume Entering a Fjord

open access: yesFrontiers in Marine Science, 2021
Observations collected from a fast-flowing buoyant river plume entering the head of Doubtful Sound, New Zealand, were analysed to examine the drivers of plume lateral spreading.
Rebecca A. McPherson   +5 more
doaj   +1 more source

Exact solutions to the Navier–Stokes equations describing stratified fluid flows [PDF]

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2021
The paper considers the necessity of constructing exact solutions to the equations of dynamics of a viscous fluid stratified in terms of several physical characteristics, with density and viscosity taken as an example.
Natalya V. Burmasheva   +1 more
doaj   +1 more source

Analysis of a stratified Kraichnan flow [PDF]

open access: yesElectronic Journal of Probability, 2020
We consider the stochastic convection-diffusion equation \[ \partial_t u(t\,,{\bf x}) =νΔu(t\,,{\bf x}) + V(t\,,x_1)\partial_{x_2}u(t\,,{\bf x}), \] for $t>0$ and ${\bf x}=(x_1\,,x_2)\in\mathbb{R}^2$, subject to $θ_0$ being a nice initial profile. Here, the velocity field $V$ is assumed to be centered Gaussian with covariance structure \[ \text{Cov}[
Huang, Jingyu, Khoshnevisan, Davar
openaire   +4 more sources

A Model Sensitivity Study of Ocean Surface Wave Modulation Induced by Internal Waves

open access: yesEarth and Space Science, 2022
Nonlinear internal waves are an upper ocean phenomenon that drives horizontal surface current gradients, which in turn modulate ocean surface waves. Under certain conditions, this wave‐current interaction creates ocean surface roughness heterogeneity, in
Jie Wu   +4 more
doaj   +1 more source

Stratified Kelvin–Helmholtz turbulence of compressible shear flows [PDF]

open access: yesNonlinear Processes in Geophysics, 2018
We study scaling laws of stratified shear flows by performing high-resolution numerical simulations of inviscid compressible turbulence induced by Kelvin–Helmholtz instability.
O. San, R. Maulik
doaj   +1 more source

The Alaiz experiment: untangling multi-scale stratified flows over complex terrain [PDF]

open access: yesWind Energy Science, 2020
We present novel measurements from a field campaign that aims to characterize multi-scale flow patterns, ranging from 0.1 to 10 km in a time-resolved manner, in a mountainous region in northwestern Spain with a mountain–valley–ridge configuration.
P. Santos   +8 more
doaj   +1 more source

Internal waves in marginally stable abyssal stratified flows [PDF]

open access: yesNonlinear Processes in Geophysics, 2018
The problem on internal waves in a weakly stratified two-layer fluid is studied semi-analytically. We discuss the 2.5-layer fluid flows with exponential stratification of both layers.
N. Makarenko   +6 more
doaj   +1 more source

Effects of inlet junctions on horizontally stratified flows

open access: yesAIP Advances, 2023
Horizontally stratified flows can be seen in a wide variety of micro-scale engineering problems. Recent studies have shown that diffusion at the interface between two liquids leads to a lateral flow, causing the fluid to rotate around the central axis of
Pooyan Heravi, Li-An Chu, Da-Jeng Yao
doaj   +1 more source

Stably stratified Taylor–Couette flows

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2023
Stably stratified Taylor–Couette flow has attracted much attention due to its relevance as a canonical example of the interplay among rotation, stable stratification, shear and container boundaries, as well as its potential applications in geophysics and astrophysics.
Jose M. Lopez   +2 more
openaire   +5 more sources

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