Effects of chamber pressure on the kinematic characteristics of spray flows exhausted from an airblast atomizer

Z Zhang, Y Liu, H Hu - Experimental Thermal and Fluid Science, 2022 - Elsevier
An experimental investigation was conducted to examine the air–liquid interactions in the
spray flows exhausted from an airblast atomizer at different ambient pressures. The …

Dynamic mode structure of active turbulence

RJ Henshaw, OG Martin, JS Guasto - Physical Review Fluids, 2023 - APS
Dense suspensions of swimming bacteria exhibit chaotic flow patterns that promote the
mixing and transport of resources and signaling chemicals within cell colonies. While the …

Recurrence analysis and time extrapolation of a confined turbulent jet using modal decomposition

S Abbasi, S Puttinger, S Pirker, T Lichtenegger - Physics of Fluids, 2020 - pubs.aip.org
We investigated the long-term dynamics of a turbulent, submerged jet at Re= 16 400 to
develop a strategy for data-assisted, fast calculations of passive species transport. We …

Dynamics of Sand–Water Coaxial Jets in Stagnant Water

F Sharif, AH Azimi - Journal of Engineering Mechanics, 2024 - ascelibrary.org
A series of laboratory experiments was conducted to study the dynamics of sand–water
coaxial jets in stagnant water. The effects of the velocity ratio of the annular to the core jets …

Turbulence structure of boundary layers perturbed by isolated and tandem roughness elements

AM Hamed, AM Peterlein - Journal of Turbulence, 2020 - Taylor & Francis
The modification to the turbulence structure of a boundary layer perturbed by an isolated
cylindrical roughness element and by two tandem cylindrical roughness elements was …

Analysis of multi-stream fuel injector flow using zonal proper orthogonal decomposition

D Butcher, A Spencer - Energies, 2021 - mdpi.com
The 3-component velocity distribution of two lean-burn gas turbine fuel injectors are
measured at a planar location near and parallel to the injector outlet. The two injectors are …

Lévy Walks as a Universal Mechanism of Turbulence Nonlocality

AB Kukushkin, AA Kulichenko - Foundations, 2023 - mdpi.com
The nonlocality (superdiffusion) of turbulence is expressed in the empiric Richardson t 3
scaling law for the mean square of the mutual separation of a pair of particles in a fluid or …

Experimental study of sand-water coaxial jets with low velocity ratio

F Sharif, AH Azimi - Canadian Society of Civil Engineering Annual …, 2021 - Springer
A series of detailed laboratory experiments were conducted to investigate the effect of low-
velocity ratios on the particle dynamics in vertically discharged sand-water coaxial jets in …

Selection of fluidic flow region of interest in a medical device using proper orthogonal decomposition

P Hota, NR Thakkar, C Barnett, B Clements… - AIP Conference …, 2023 - pubs.aip.org
The present study aims at identifying an optimal spatial region of interest (ROI) by means of
image analysis of a temporal data set obtained by a novel medical device. To achieve this, a …

[PDF][PDF] Recurrence CFD studies on fast simulations in turbulent flows with a focus on data efficiency/submitted by Sanaz Abbasi MSc.

S Abbasi - 2021 - epub.jku.at
Abstract" Recurrence CFD"(rCFD) is a data-assisted approach to time-extrapolate the
dynamics of recurrent systems. In this work, we studied and developed rCFD to reduce …