Results 41 to 50 of about 409 (140)

System Identification of Robotic Fish Swimming Reveals Roles of Reactive and Resistive Fluid Force in Two Distinct Swimming Gaits

Advanced Intelligent Systems, Volume 8, Issue 6, June 2026.
System identification and particle image velocimetry reveal how a modular robotic fish changes thrust physics across gaits. A traveling‐wave, fish‐like motion draws thrust from resistive drag, while a resonant standing‐wave motion is driven by reactive pressure.
Donghao Li, Hankun Deng, Kundan Panta, Azar Panah, Bo Cheng   +4 more
wiley   +1 more source

Assessing Data‐Driven Eddy‐Parameterizations in an Atlantic Sector Model

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 6, June 2026.
Abstract Mesoscale eddies are the dominant reservoir of kinetic energy (KE) in the ocean and a key component of the Earth's climate system. Current state‐of‐the‐art climate models can only partially resolve mesoscale processes due to the limited spatial resolution imposed by computational resources, making the accurate parameterization of unresolved KE
David Kamm, Pavel Perezhogin, Julie Deshayes, Etienne Meunier, Alexis Barge   +4 more
wiley   +1 more source

Coaxial collisions of a vortex ring and a sphere in an inviscid incompressible fluid [PDF]

Physics of Fluids, 2017
The dynamics of a circular thin vortex ring and a sphere moving along the symmetry axis of the ring in an inviscid incompressible fluid is studied on the basis of Euler’s equations of motion. The equations of motion for the position and radius of the vortex ring and those for the position and velocity of the sphere are coupled by hydrodynamic ...
openaire   +2 more sources

Evolution of an Incompressible Fluid Drop Under a Central Force Field: Analytical Benchmark Solutions for Free‐Surface Flows

Studies in Applied Mathematics, Volume 156, Issue 6, June 2026.
ABSTRACT We present a set of exact and approximate analytical solutions describing the evolution of a fluid drop under the action of a central force field, in both two and three dimensions. The fluid is assumed to be Newtonian and incompressible with a free surface and no solid boundaries The absence of solid walls eliminates boundary‐layer effects ...
Matteo Antuono
wiley   +1 more source

Completeness of inertial modes of an incompressible inviscid fluid in a corotating ellipsoid

Physical Review E, 2017
19 pages, 1 figure, to appear in Physical Review ...
Backus, George, Rieutord, Michel
openaire   +5 more sources

Free Surface Waves in Electrohydrodynamics With a Prescribed Vorticity Distribution

Mathematical Methods in the Applied Sciences, Volume 49, Issue 7, Page 7068-7081, 15 May 2026.
ABSTRACT Traditionally, the study of free surface flows assumed irrotationality to simplify matters, and the results seemed to have great success, notably with the Korteweg‐de Vries(KdV) equation. In the past decade, there have been attempts to remove this seemingly strong condition and replace it with a global constant vorticity equivalent to a linear
M. J. Hunt, Denys Dutykh
wiley   +1 more source

The Influence of Fluvial Incision on the Lithospheric Stress Field: A Numerical Approach

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract Erosion along large fluvial valleys transports important sedimentary volumes across continents over geological time, modifying the loads imposed on the lithosphere and inducing isostasy‐related subsurface stresses. This work presents numerical experiments with a visco‐plastic lithosphere aimed at understanding the distribution and evolution of
F. Baiadori, V. Sacek
wiley   +1 more source

Global weak solutions for the compressible Poisson–Nernst–Planck–Navier–Stokes system

Journal of the London Mathematical Society, Volume 113, Issue 5, May 2026.
Abstract We consider the compressible Poisson–Nernst–Planck–Navier–Stokes (PNPNS) system of equations, governing the transport of charged particles under the influence of the self‐consistent electrostatic potential, in a three‐dimensional bounded domain.
Daniel Marroquin, Dehua Wang
wiley   +1 more source

Advection‐Pressure Splitting Schemes Applied to a Non‐Conservative 1D Blood Flow Model With Transport for Arteries and Veins

International Journal for Numerical Methods in Fluids, Volume 98, Issue 4, Page 398-432, April 2026.
We introduce new efficient and accurate first order finite volume‐type numerical schemes, for the non‐conservative one‐dimensional blood flow equations with transport, taking into account different velocity profiles. The framework is the flux‐vector splitting approach of Toro and Vázquez‐Cendón (2012), that splits the system in two subsystems of PDEs ...
Alessandra Spilimbergo, Eleuterio F. Toro, Annunziato Siviglia, Lucas O. Müller   +3 more
wiley   +1 more source

Singular Profile of Free Boundary of Incompressible Inviscid Fluid with External Force

SIAM Journal on Mathematical Analysis
This article is devoted to investigate the singular profile of the free boundary of two-dimensional incompressible inviscid fluid with external force near the stagnation point. More precisely, given an external force with some polynomial type decay close to the stagnation point, the singular profile of the free boundary at stagnation point possible are
Lili Du, Yang Pu, Jing Yang
openaire   +4 more sources