Results 101 to 110 of about 60,257 (227)

Experimental assessment of helicopter rotor turbulence ingestion noise in hover [PDF]

An experiment was conducted to assess the accuracy of a theory for non-isotropic turbulence ingestion. In order to generate non-isotropic turbulence in a controlled environment, a scale model rotor in a closed chamber was used so that the turbulence ...
Amiet, R. K., Schlinker, R. H., Simonich, J. C.   +2 more
core   +1 more source

Persistent Ocean‐Shelf Transport Across the North West European Shelf Edge

Journal of Geophysical Research: Oceans, Volume 131, Issue 2, February 2026.
Abstract Transport mechanisms between the deep ocean and adjacent continental shelf seas play an important role in the spatial distribution of nutrient delivery to the coastal ocean and in the temporal variability of shelf biogeochemical processes. Along the North West European Shelf (NWES) edge, nutrient‐rich waters of oceanic origin are found below ...
André Palóczy, Joanne Hopkins, Anthony Wise, John Huthnance   +3 more
wiley   +1 more source

Understanding Atrial Fibrillation Complexity Through the Lens of Turbulence Dynamics: Implications for Treatment Strategies

Journal of Cardiovascular Electrophysiology, Volume 37, Issue 2, Page 400-412, February 2026.
ABSTRACT Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia encountered in clinical practice. Its incidence increases significantly with age and has become a major global public health issue. Although research into the mechanisms of AF has spanned over a century‐ranging from the reentry theory to the rotor hypothesis‐none of these
Xin Chu, Xiaohan Jiang, Qing Qiao, Xiaojun Wang, Hong Ye   +4 more
wiley   +1 more source

Accurate Semantic Segmentation in Turbulence Media

IEEE Access, 2019
Accurate image semantic segmentation in atmosphere turbulence conditions is challenging due to the severe degradation effects introduced by the random refractive-index fluctuations of atmosphere.
Linyan Cui, Yan Zhang
doaj   +1 more source

The analysis and modeling of dilatational terms in compressible turbulence [PDF]

It is shown that the dilatational terms that need to be modeled in compressible turbulence include not only the pressure-dilatation term but also another term - the compressible dissipation.
Erlebacher, G., Hussaini, M. Y., Kreiss, H. O., Sarkar, S.   +3 more
core   +1 more source

Wide‐Swath Satellite Altimetry Data Improves Modeled Mesoscale and Submesoscale Dynamics in a Western Boundary Current

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract Ocean state estimates that represent mesoscale and submesoscale dynamics are crucial for climate research and ocean forecasting. Accurate submesoscale representation in ocean models is a current challenge due to rapidly evolving flow and lack of observations at suitable scales.
C. Kerry, S. R. Keating, M. Roughan, M. Azaneu, G. B. Brassington   +4 more
wiley   +1 more source

On the Rotation‐Induced Pressure‐Strain Correlation in Rotating Boundary Layer Flows

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract Rotation is a fundamental feature of many weather systems. The pressure‐strain correlation plays an important role in the Reynolds stress budget. However, the behavior of the pressure‐strain correlation under rotation remains insufficiently explored. This study develops a closure model for the rotation‐induced pressure‐strain correlation.
Xin Shao, Ning Zhang
wiley   +1 more source

Forward and backward multi-particle dispersion in homogeneous isotropic turbulence

Nihon Kikai Gakkai ronbunshu
Turbulent diffusion in homogeneous isotropic turbulence is numerically investigated using the direct numerical simulation (DNS). The four-dimensional turbulence database allows us to track fluid particles not only in the forward direction of time but ...
Ryunosuke ARAKAWA, Takuya KITAMURA, Yohei SONOBE, Akihide SAIMOTO, Takeshi NANRI   +4 more
doaj   +1 more source

Helicopter rotor noise due to ingestion of atmospheric turbulence [PDF]

A theoretical study was conducted to develop an analytical prediction method for helicopter main rotor noise due to the ingestion of atmospheric turbulence.
Amiet, R. K., Greitzer, E. M., Schlinker, R. H., Simonich, J. C.   +3 more
core   +1 more source

Flow‐Dependent Inertial Permeability Defines Crossover Between Darcy and Forchheimer Flow Regimes

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract We present mechanistic evidence that the Forchheimer inertial permeability coefficient (β $\beta $) is flow‐dependent in the weak‐to‐intermediate inertia crossover regime, governed by pore‐scale eddy growth‐to‐confinement dynamics. In contrast to classical theory, β $\beta $ attains steady‐state (βs ${\beta }_{s}$) asymptotically in the ...
Kuldeep Singh, Negin Sharifabad
wiley   +1 more source