Results 141 to 150 of about 195,153 (293)

Effective Absorption Cross Sections of Defects in High Pressure High Temperature Diamond Studied by Modulated Surface Photovoltage Spectroscopy

physica status solidi (a), EarlyView.
Effective absorption cross sections of defects in high pressure high temperature diamond samples are extracted by a fitting procedure of rather complex modulated surface photovoltage (SPV) spectra and up to ten defect transitions are distinguished over the entire bandgap of diamond. This general approach of SPV analysis broadens the analysis of defects
Steffen Fengler, Ilya Ponomarev, Thomas Dittrich   +2 more
wiley   +1 more source

ON THE E. HOPF'S WEAK SOLUTION OF THE INITIAL VALUE PROBLEM FOR THE NAVIER-STOKES EQUATIONS

, 1967
Wasao Sibagaki, Hisako RIKIMARU
openalex   +2 more sources

Large‐eddy simulation with Lagrangian cloud modeling and large‐scale dynamics (L3$$ {\mathrm{L}}^3 $$) for studying the marine fog life cycle

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study explores the life cycle of marine fog using a novel L3$$ {\mathrm{L}}^3 $$ coupling method, which integrates large‐eddy simulation (LES), Lagrangian cloud modeling (LCM), and large‐scale dynamics (LSD). Simulations of two fog episodes observed during the FATIMA campaign revealed key insights into the fog's microphysical and dynamic ...
Anup Barve, Ismail Gultepe, Harindra Joseph Fernando, Qing Wang, Lian Shen   +4 more
wiley   +1 more source

Resolution numerique des equations de Navier-Stokes pour les fluides compressibles [PDF]

, 1974
R. Peyret, H. Viviand
openalex   +1 more source

Evaluating machine‐learning models for wind‐speed downscaling from ECMWF‐IFS data

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We benchmark recent machine‐learning methods for downscaling wind speeds from a low‐resolution 9‐km model input to 1‐km predictions. We include recent super‐resolution approaches and transformer‐based architectures and propose Windflow‐SRnet. The models are trained with input data from the ECMWF‐IFS numerical weather model to predict label data from ...
William Ericson, Florian Achermann, Nicholas Lawrance, Julie Villinger, Olov Andersson, Roland Siegwart   +5 more
wiley   +1 more source

The nested block preconditioning technique for the incompressible Navier-Stokes equations with emphasis on hemodynamic simulations. [PDF]

Comput Methods Appl Mech Eng, 2020
Liu J, Yang W, Dong M, Marsden AL.
europepmc   +1 more source

Where numerical weather prediction meets large‐eddy simulations in a convective boundary layer during the FESSTVaL field experiment

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We exploit the Field Experiment on Sub‐mesoscale Spatio‐Temporal Variability in Lindenberg (FESSTVaL) to compare the performance of an NWP model at sub‐km resolutions with a traditional LES model. Focusing on clear‐sky ABL turbulence (June 14), shallow convective clouds and surface radiation (June 27), and deep convective cold pools (June 29), we find ...
Mirjana Sakradzija, Maike Ahlgrimm, Frank Beyrich, Chiel van Heerwaarden, Eileen Päschke, Ulrich Görsdorf, Bastian Kirsch, Juerg Schmidli, Noviana Dewani   +8 more
wiley   +1 more source

The evolution of measures determined by the Navier-Stokes equations and on the solvability of the Cauchy problem for the Hopf statistical equation [PDF]

, 1978
A. M. Vershik, O. A. Ladyzhenskaya
openalex   +1 more source

Quantum Iterative Methods for Solving Differential Equations with Application to Computational Fluid Dynamics

Advanced Quantum Technologies, EarlyView.
Quantum algorithms for differential equations are developed with applications in computational fluid dynamics. The methods follow an iterative simulation framework, implementing Jacobi and Gauss–Seidel schemes on quantum registers through linear combinations of unitaries.
Chelsea A. Williams, Antonio A. Gentile, Vincent E. Elfving, Daniel Berger, Oleksandr Kyriienko   +4 more
wiley   +1 more source

Logarithmically improved blow-up criteria for the 3D nonhomogeneous incompressible Navier-Stokes equations with vacuum

Electronic Journal of Differential Equations, 2016
This article is devoted to the study of the nonhomogeneous incompressible Navier-Stokes equations in space dimension three. By making use of the "weakly nonlinear" energy estimate approach introduced by Lei and Zhou in [16], we establish two ...
Qianqian Hou, Xiaojing Xu, Zhuan Ye
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