Results 31 to 40 of about 81,313,852 (119)

Surrogate Quantum Circuit Design for the Lattice Boltzmann Collision Operator

International Journal for Numerical Methods in Engineering, Volume 127, Issue 4, 28 February 2026.
ABSTRACT This study introduces a framework for learning a low‐depth surrogate quantum circuit (SQC) that approximates the nonlinear, dissipative, and hence non‐unitary Bhatnagar–Gross–Krook (BGK) collision operator in the lattice Boltzmann method (LBM) for the D2Q9$$ {D}_2{Q}_9 $$ lattice.
Monica Lăcătuş, Matthias Möller
wiley   +1 more source

Effect of Aspect Ratio on the Three-Dimensional Global Instability Analysis of Incompressible Open Cavity Flows [PDF]

, 2011
The stability analysis of open cavity flows is a problem of great interest in the aeronautical industry. This type of flow can appear, for example, in landing gears or auxiliary power unit configurations.
Vassilios Theofilis, Elmer Gennaro, Gómez, Raquel, Theofilis, Vassilios, Paredes Gonzalez, Pedro, Pedro Paredes, Daniel Rodriguez, Theofilis, V., Tendero Ventanas, Juan Angel, Fernando Meseguer, Daniel Rodriguez Alvarez, Meseguer Garrido, Fernando, Rodríguez Álvarez, Daniel, Vicente Buendia, Javier de, Valero Sánchez, Eusebio, Marcello Medeiros, Gennaro, E. M., Paredes, P., Javier de Vicente, Eusebio Valero, J. Tendero, Gennaro, Elmer, Medeiros, M., Tendero, J. A., Gómez Carrasco, Francisco, Rodríguez, D., Medeiros, M. A. F.   +26 more
core   +1 more source

A Jacobian‐Free Newton‐Krylov Method for Cell‐Centred Finite Volume Solid Mechanics

International Journal for Numerical Methods in Engineering, Volume 127, Issue 3, 15 February 2026.
ABSTRACT This study proposes a Jacobian‐free Newton‐Krylov approach for finite‐volume solid mechanics. Traditional Newton‐based approaches require explicit Jacobian matrix formation and storage, which can be computationally expensive and memory‐intensive.
Philip Cardiff, Dylan Armfield, Željko Tuković, Ivan Batistić   +3 more
wiley   +1 more source

Flow Structure in a Model of Aircraft Trailing Vortices [PDF]

, 2005
We consider a model of incompressible trailing vortices consisting of an array of counter-rotating structures in a doubly periodic domain, infinite in the vertical direction.
Faddy, James Malcolm
core   +1 more source

Shrouded Wind and Water Turbine Analytical Model Extensions for Tip Gaps, Center Bodies, and Flow Blockage

Wind Energy, Volume 29, Issue 2, February 2026.
ABSTRACT This paper provides improvements to a previously presented simple, accurate, lower order analytical model for predicting the performance of horizontal‐axis shrouded turbines for a wide range of shroud airfoil shapes varying in length, camber, and thickness. The new, extended model incorporates explicit quantitative predictions of those effects
M. J. Werle
wiley   +1 more source

A Pull‐Out Mooring Wave Energy Converter: Design, Analysis, and Application

Advanced Science, Volume 13, Issue 4, 19 January 2026.
A pull‐out mooring wave energy converter (POM‐WEC) with a high‐performance electromagnetic power take‐off system efficiently converts low‐frequency wave excitation into high‐speed rotor motion, enabling reliable energy harvesting in real marine environments.
Weihan Xu, Junru Chen, Shanghao Gu, Xingya Feng, Fei Wang   +4 more
wiley   +1 more source

A Dilating Vortex Particle Method for Compressible Flow with Applications to Aeroacoustics [PDF]

, 2002
Vortex methods have become useful tools for the computation of incompressible fluid flow. In the present work, a vortex particle method for the simulation of unsteady two-dimensional compressible flow is developed and applied to several problems.
Eldredge, Jeffrey D.
core   +1 more source

Vortex Line Density in a Superfluid Turbulent Wake in the Zero Temperature Limit

Annalen der Physik, Volume 538, Issue 1, January 2026.
The quasiclassical conjecture for quantum turbulence in a pure superfluid straightforwardly leads to the definition of the superfluid Reynolds number, Res=ud/κ$Re_s=ud/\kappa$, and suggests that the effective quantum viscosity should be of the order of the circulation quantum κ$\kappa$.
Hiromitsu Takeuchi
wiley   +1 more source

The motion of point vortices on closed surfaces [PDF]

, 2015
We develop a mathematical framework for the dynamics of a set of point vortices on a class of differentiable surfaces conformal to the unit sphere. When the sum of the vortex circulations is non-zero, a compensating uniform vorticity field is required to
Dritschel, David Gerard, Boatto, S
core   +1 more source

A study of a free convective boundary layer using a parcel‐based Lagrangian model

Quarterly Journal of the Royal Meteorological Society, Volume 152, Issue 774, January 2026 Part A.
We study the development of a convective boundary layer forced by surface heating and growing into a stably stratified atmosphere above. We compare our results with several recent comprehensive direct numerical simulation (DNS) studies and find broad agreement, and often close quantitative agreement, despite fundamental differences in the numerical ...
Samuel Wallace, Steven Böing, Matthias Frey, David Dritschel   +3 more
wiley   +1 more source