Results 141 to 150 of about 41,901 (252)

Effect of Unstable Water Flow on Grain Transport: Insights From Laboratory Experiments Under Reduced Atmospheric Pressure

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract Nowadays, Mars presents an environment characterized by low atmospheric pressure (∼6 mbar), which profoundly alters water‐driven surface processes known from Earth. Under these conditions, water rapidly boils, cools, and stabilizes near the triple point, often freezing, which strongly limits its ability to transport sediment.
Ondřej Krýza   +7 more
wiley   +1 more source

First Direct Observations of Internal Flow Structures in a Powder Snow Avalanche: Turbulence, Instability and Particle Distribution

open access: yesJournal of Geophysical Research: Earth Surface, Volume 131, Issue 6, June 2026.
Abstract Powder snow avalanches are highly dynamic, multiphase gravity‐driven flows typically composed of a dense basal layer overlain by airborne layers in which snow particles are suspended within a turbulent air phase. Despite extensive work on related systems such as pyroclastic density currents and turbidity currents, all gravity current studies ...
I. Calic, F. Coletti, B. Sovilla
wiley   +1 more source

Shock response of axisymmetric samples under radial impulse loading using Photon Doppler Velocimetry

open access: yes, 2010
Author Institution: The Ohio State UniversitySlides presented at the 5th Annual Photonic Doppler Velocimetry (PDV) Users Conference held at The Ohio State University, Columbus, Ohio, September 8-9 ...
Johnson, Jason R.
core  

Experimental Characterisation of Swirl Stabilized Annular Stratified Flames [PDF]

open access: yes, 2007
A burner for investigating lean stratified premixed flames propagating in intense isotropic turbulence has been developed. Lean pre-mixtures of methane at different equivalence ratios are divided between two concentric co-flows to obtain annular ...
Bonaldo, Alessio
core  

A Neural Operator Emulator for Coastal and Riverine Shallow Water Dynamics

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 3, June 2026.
Abstract Coastal regions and river floodplains are particularly vulnerable to the impacts of extreme weather events. Accurate real‐time forecasting of hydrodynamic processes in these areas is essential for infrastructure planning and climate adaptation.
Peter Rivera‐Casillas   +9 more
wiley   +1 more source

Spatial Patterns and Controlling Factors of River Flow Intermittency in Africa

open access: yesWater Resources Research, Volume 62, Issue 6, June 2026.
Abstract Understanding river flow intermittency remains a major challenge in data‐scarce regions such as Africa. This study presents the first high‐resolution, four‐class intermittency map of African rivers using a sequential modeling approach based on Random Forest. A binary model (BC‐UNS) distinguishes perennial from non‐perennial reaches across 15.5
Axel Belemtougri   +5 more
wiley   +1 more source

The investigation of tube sampling disturbance using transparent soil and particle image velocimetry [PDF]

open access: yes
A small-scale physical modelling system was developed and employed to investigate the effects of tube sampling. Amorphous silica and an oil blend of matching refractive index were mixed to form a transparent soil.
Hover, Eyre D.
core  

25 Years of Particle Image Velocimetry in Aerodynamics

open access: yes, 2009
Welcome to the Symposium „25 years of Particle Image Velocimetry in Aerodynamics”! It all started in September 1984 when a group of researchers from Oldenburg shipped their highenergy ruby laser across a bumpy highway to Göttingen.
Kompenhans, Jürgen
core  

Development of Doppler Global Velocimetry

open access: yes, 2004
DGV (Doppler Global Velocimetry) is a system to measure velocity of particles crossing a laser sheet, by analyzing the scattered doppler shifted frequency of a light sheet.
坂口, 大作
core  

Particle Image Velocimetry in practice

open access: yes, 2009
Experimental fluid mechanics has for a long time been used to visualize flow phenomenon. An early pioneer was Ludwig Prandtl who used aluminum particles in water flumes to describe the flow in a qualitative manner. In line with the rapid development of Computational Fluid Dynamics, CFD, the need for new validation tools has increased.
openaire   +2 more sources

Home - About - Disclaimer - Privacy