Results 41 to 50 of about 5,941,578 (168)

Searching for Universality of Turbulence in the Earth's Magnetosphere

Journal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.
Abstract Turbulence in space plasmas remains a fundamental challenge, and Earth's magnetosphere (MSP) offers a natural laboratory for its study. Using high‐resolution magnetic field data from the Magnetospheric Multiscale (MMS) mission, we extend a stochastic Markovian framework to analyze turbulence across 10 diverse magnetospheric regions, including ...
Dariusz Wójcik, Wiesław M. Macek
wiley   +1 more source

An extension to the Navier-Stokes equations to incorporate gas molecular collisions with boundaries [PDF]

, 2010
We investigate a model for micro-gas-flows consisting of the Navier-Stokes equations extended to include a description of molecular collisions with solid boundaries, together with first and second order velocity slip boundary conditions.
Reese, Jason M., Dadzie, S. Kokou, Dadzie, S.K., Arlemark, Erik J., Arlemark, E.J., Reese, J.M., Dadzie, S Kokou; id_orcid, Erik J. Arlemark, S. Kokou Dadzie, Jason M. Reese   +9 more
core   +3 more sources

The exterior non-stationary problem for the Navier-Stokes equations in regions with moving boundaries

Journal of the Mathematical Society of Japan, 1990
This paper is concerned with an initial-boundary value problem for the Navier-Stokes equations of incompressible viscous flow in a three- dimensional exterior domain with time-dependent boundary. More precisely, the equations are studied in a noncylindrical region \(\Omega_ T= {\displaystyle {\bigcup_{0\leq t\leq T}}} \Omega(t) \times\{t\}\), where \(T>
openaire   +4 more sources

Spatially Periodic Solutions for Evolution Anisotropic Variable‐Coefficient Navier–Stokes Equations: II. Serrin‐Type Solutions

Mathematical Methods in the Applied Sciences, Volume 48, Issue 12, Page 11592-11619, August 2025.
ABSTRACT We consider evolution (nonstationary) space‐periodic solutions to the n$$ n $$‐dimensional nonlinear Navier–Stokes equations of anisotropic fluids with the viscosity coefficient tensor variable in space and time and satisfying the relaxed ellipticity condition.
Sergey E. Mikhailov
wiley   +1 more source

On the Navier-Stokes problem [PDF]

, 2019
One of the millennium problems is discussed. The results of the author’s solution to this problem are explained.
Ramm, Alexander G.
core   +1 more source

Derivation and Numerical Assessment of a Stochastic Large–Scale Hydrostatic Primitive Equations Model

Journal of Advances in Modeling Earth Systems, Volume 17, Issue 7, July 2025.
Abstract Planetary flows are shaped by interactions at scales much smaller than the flows themselves, with mesoscale and sub–mesoscale eddies playing key roles in mixing, particle transport and tracer dispersion. To capture these effects, we introduce a stochastic formulation of the primitive equations within the Location Uncertainty (LU) framework ...
Francesco L. Tucciarone, Long Li, Etienne Mémin, Pranav Chandramouli   +3 more
wiley   +1 more source

Improving the Fuel Economy and Energy Efficiency of Train Cab Climate Systems, Considering Air Recirculation Modes

Energies
Current developments in vehicles have generated great interest in the research and optimization of heating, ventilation, and air conditioning (HVAC) systems as a factor to reduce fuel consumption.
Ivan Panfilov, Alexey N. Beskopylny, Besarion Meskhi   +2 more
doaj   +1 more source

Aeroelastic force prediction via temporal fusion transformers

Computer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 15, Page 2098-2129, 17 June 2025.
Abstract Aero‐structural shape design and optimization of bridge decks rely on accurately estimating their self‐excited aeroelastic forces within the design domain. The inherent nonlinear features of bluff body aerodynamics and the high cost of wind tunnel tests and computational fluid dynamics (CFD) simulations make their emulation as a function of ...
Miguel Cid Montoya, Ashutosh Mishra, Sumit Verma, Omar A. Mures, Carlos E. Rubio‐Medrano   +4 more
wiley   +1 more source

Elementary Mathematics Helps to Shed Light on the Transpiration Budget Under Water Stress

Ecohydrology, Volume 18, Issue 2, March 2025.
ABSTRACT This paper aims to present a methodology for accurately describing transpiration by employing appropriate physical equations. While some simplifications have been made, including the use of a simplified treatment of turbulence and the neglect of the thermal capacity of transpiring leaves, it is argued that the chosen scheme has general ...
Concetta D'Amato, Riccardo Rigon
wiley   +1 more source

Localized method of approximate particular solutions for solving unsteady Navier–Stokes problem

, 2016
The localized method of approximate particular solution (LMAPS) is proposed to solve two-dimensional transient incompressible navier-Stokes systems of equations in primitive variables. The equations contain the Laplacian operator.
Zhang, Xueying, Chen, Muyuan, Chen, C.S., Li, Zhiyong   +3 more
core   +1 more source