Turbulence statistics and flow structure in fluid flow using particle image velocimetry technique: A review

PO Ayegba, LC Edomwonyi‐Otu - Engineering Reports, 2020 - Wiley Online Library
Particle image velocimetry (PIV) measurement technique provides an excellent opportunity
for investigating instantaneous spatial structures which are not always possible with point …

Momentum flux measurements in the airflow over wind-generated surface waves

K Yousefi, F Veron, MP Buckley - Journal of Fluid Mechanics, 2020 - cambridge.org
The air–sea momentum exchanges in the presence of surface waves play an integral role in
coupling the atmosphere and the ocean. In the current study, we present a detailed …

Effect of secondary currents on the flow and turbulence in partially filled pipes

Y Liu, T Stoesser, H Fang - Journal of Fluid Mechanics, 2022 - cambridge.org
Large-eddy simulations of turbulent flow in partially filled pipes are conducted to investigate
the effect of secondary currents on the friction factor, first-and second-order statistics and …

Stability of stratified two-phase flows in horizontal channels

I Barmak, A Gelfgat, H Vitoshkin, A Ullmann… - Physics of …, 2016 - pubs.aip.org
Linear stability of stratified two-phase flows in horizontal channels to arbitrary wavenumber
disturbances is studied. The problem is reduced to Orr-Sommerfeld equations for the stream …

Study and characterization of gas-liquid slug flow in an annular duct, using high speed video camera, wire-mesh sensor and PIV

MMH Cely, VEC Baptistella, OMH Rodriguez - Experimental Thermal and …, 2018 - Elsevier
An experimental study is presented on air-water two-phase flow in a 10.5-m-long annular
duct with an external diameter of 155 mm and an inner diameter of 60 mm. Particle image …

[HTML][HTML] Impact of turbulence and secondary flow on the water surface in partially filled pipes

Y Liu, T Stoesser, H Fang - Physics of Fluids, 2022 - pubs.aip.org
Large eddy simulations (LESs) of turbulent flow in partially filled pipes at various filling
degrees are conducted to investigate the response of the water surface to the turbulence …

Combined simultaneous two-phase PIV and interface elevation measurements in stratified gas/liquid pipe flow

AA Ayati, J Kolaas, A Jensen, GW Johnson - International Journal of …, 2015 - Elsevier
The multiphase flow loop at the University of Oslo has been upgraded with a wave
measurement gauge consisting of two conductance probes. Hence, we are able to combine …

Evolution of waves in a horizontal pipe propagating on a surface of a liquid film sheared by gas

K Kumar, A Fershtman, D Barnea, L Shemer - Physics of Fluids, 2021 - pubs.aip.org
Different wavy regimes in stratified air–water pipe flow are determined for a wide range of
gas and liquid flow rates in a 10 m long horizontal pipe with a diameter of 24 mm. Three sub …

Characterization of interfacial waves in stratified turbulent gas-liquid pipe flow using Particle Image Velocimetry and controlled disturbances

PSC Farias, LFA Azevedo, IB De Paula - International Journal of …, 2023 - Elsevier
The work reports an experimental investigation on stratified gas-liquid pipe flow
characteristics in the presence of controlled interfacial waves. Studies of this flow regime …

[HTML][HTML] Dynamics of liquid–liquid flows in horizontal pipes using simultaneous two–line planar laser–induced fluorescence and particle velocimetry

R Ibarra, I Zadrazil, OK Matar, CN Markides - International Journal of …, 2018 - Elsevier
Experimental investigations are reported of stratified and stratified–wavy oil–water flows in
horizontal pipes, based on the development and application of a novel simultaneous two …