Results 41 to 50 of about 995,261 (384)

Site‐Specific Soil Properties of the US Climate Reference Network Soil Moisture

Vadose Zone Journal, 2016
Core Ideas This study quantifies the variability of soils at US Climate Reference Network sites. Soil properties were determined from the analysis of soil core samples.
Timothy B. Wilson, C. Bruce Baker, Tilden P. Meyers, John Kochendorfer, Mark Hall, Jesse E. Bell, Howard J. Diamond, Michael A. Palecki   +7 more
doaj   +1 more source

Towards a Simple Model of Compressible Alfvenic Turbulence [PDF]

, 1997
A simple model collisionless, dissipative, compressible MHD (Alfvenic) turbulence in a magnetized system is investigated. In contrast to more familiar paradigms of turbulence, dissipation arises from Landau damping, enters via nonlinearity, and is ...
A. Chekhlov, A. Rogister, B. T. Tsurutani, B.T. Tsurutani, C.F. Kennel, D. Forster, D.A. Roberts, D.C. Montgomery, E. Mjølhus, E. Mjølhus, G.K. Batchelor, G.P. Zank, J.-D. Fournier, J.V. Shebalin, M. Neugebauer, M. V. Medvedev, M.A. Malkov, M.V. Medvedev, M.V. Medvedev, M.V. Medvedev, P. H. Diamond, P.H. Diamond, P.J. Hansen, R.H. Kraichnan, R.H. Kraichnan, S. Ghosh, S. Rauf, S.L. Woodruff, S.R. Spangler   +28 more
core   +2 more sources

Deep learning fluid flow reconstruction around arbitrary two-dimensional objects from sparse sensors using conformal mappings

AIP Advances, 2022
The usage of neural networks (NNs) for flow reconstruction (FR) tasks from a limited number of sensors is attracting strong research interest owing to NNs’ ability to replicate high-dimensional relationships.
Ali Girayhan Özbay, Sylvain Laizet
doaj   +1 more source

Investigating the Linear Dynamics of the Near-Field of a Turbulent High-Speed Jet Using Dual-Particle Image Velocimetry (PIV) and Dynamic Mode Decomposition (DMD)

Fluids, 2023
The quest for the physical mechanisms underlying turbulent high-speed jet flows is underpinned by the extraction of spatio-temporal coherent structures from their flow fields.
Vishal Chaugule, Alexis Duddridge, Tushar Sikroria, Callum Atkinson, Julio Soria   +4 more
doaj   +1 more source

Is the subdominant part of the energy spectrum due to downscale energy cascade hidden in quasi-geostrophic turbulence? [PDF]

, 2006
In systems governing two-dimensional turbulence, surface quasi-geostrophic turbulence, (more generally $\alpha$-turbulence), two-layer quasi-geostrophic turbulence, etc., there often exist two conservative quadratic quantities, one ``energy''-like and ...
Gkioulekas, Eleftherios, Tung, Ka Kit
core   +6 more sources

POD Analysis of the Wake of Two Tandem Square Cylinders

Fluids
This study aims to investigate the wake of two tandem square cylinders based on the Proper Orthogonal Decomposition (POD) analyses of the PIV and hotwire data. The cylinder centre-to-centre spacing ratio L/w examined is from 1.2 to 4.2, covering the four
Jingcheng Hao, Siva Ramalingam, Md. Mahbub Alam, Shunlin Tang, Yu Zhou   +4 more
doaj   +1 more source

Archimedes’ law explains penetration of solids into granular media

Nature Communications, 2018
The penetration dynamics of solid objects into granular media has been described by theories that are constrained to the use of phenomenological models or empirical parameters. Here, Kang et al.
Wenting Kang, Yajie Feng, Caishan Liu, Raphael Blumenfeld   +3 more
doaj   +1 more source

A computational framework for physics-informed symbolic regression with straightforward integration of domain knowledge

Scientific Reports, 2023
Discovering a meaningful symbolic expression that explains experimental data is a fundamental challenge in many scientific fields. We present a novel, open-source computational framework called Scientist-Machine Equation Detector (SciMED), which ...
Liron Simon Keren, Alex Liberzon, Teddy Lazebnik   +2 more
doaj   +1 more source

The Nature of Subproton Scale Turbulence in the Solar Wind

, 2013
The nature of subproton scale fluctuations in the solar wind is an open question, partly because two similar types of electromagnetic turbulence can occur: kinetic Alfven turbulence and whistler turbulence.
Boldyrev, S., Chen, C. H. K., Perez, J. C., Xia, Q.   +3 more
core   +1 more source

Vortices and turbulence in trapped atomic condensates [PDF]

, 2013
After over a decade of experiments generating and studying the physics of quantized vortices in atomic gas Bose-Einstein condensates, research is beginning to focus on the roles of vortices in quantum turbulence, as well as other measures of quantum ...
Anderson, Brian P., Bagnato, Vanderlei S., White, Angela C.   +2 more
core   +2 more sources