Results 31 to 40 of about 81,982,001 (119)

Lagrangian Averaging, Nonlinear Waves, and Shock Regularization [PDF]

, 2005
In this thesis, we explore various models for the flow of a compressible fluid as well as model equations for shock formation, one of the main features of compressible fluid flows.
Bhat, Harish Subrahmanya
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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

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

Large‐Amplitude Periodic Solutions to the Steady Euler Equations With Piecewise Constant Vorticity

Studies in Applied Mathematics, Volume 156, Issue 1, January 2026.
ABSTRACT We consider steady solutions to the incompressible Euler equations in a two‐dimensional channel with rigid walls. The flow consists of two periodic layers of constant vorticity separated by an unknown interface. Using global bifurcation theory, we rigorously construct curves of solutions that terminate either with stagnation on the interface ...
Alex Doak, Karsten Matthies, Jonathan Sewell, Miles H. Wheeler   +3 more
wiley   +1 more source

A Caputo Fractional PINN Framework for Fractional Gardner and Wound‐Healing Models

Journal of Mathematics, Volume 2026, Issue 1, 2026.
Systems with memory, hereditary effects, and nonlocal temporal dynamics are naturally described by the fractional partial differential equations (FPDEs). However, the history‐dependent operators in FPDEs pose significant challenges for traditional numerical and physics‐informed methods.
Hafsa Khan, Muhammad Sulaiman, Izaz Ur Rahman, Mohammed Abdullah Salman, Ghaylen Laouini, Naveed Ahmad Khan, Smritijit Sen   +6 more
wiley   +1 more source

A 'reciprocal' theorem for the prediction of loads on a body moving in an inhomogeneous flow at arbitrary Reynolds number [PDF]

, 2011
Several forms of a theorem providing general expressions for the force and torque acting on a rigid body of arbitrary shape moving in an inhomogeneous incompressible flow at arbitrary Reynolds number are derived.
Magnaudet, Jacques, Jacques Magnaudet
core   +1 more source

Stability Analysis and Novel Damage Identification of Multispan Fluid‐Conveying Pipes Immersed in a Fluid Using Orthogonal Matching Pursuit

Structural Control and Health Monitoring, Volume 2026, Issue 1, 2026.
Understanding the stability and damage behavior of fluid‐conveying pipes is crucial in many engineering applications, including offshore and energy systems. This paper proposes a novel and unified framework for stability analysis and damage identification of a multispan fluid‐conveying pipe submerged in an external fluid, addressing a problem that has ...
Ramazan-Ali Jafari-Talookolaei, Maryam Abedi, Francesc Pozo   +2 more
wiley   +1 more source

Anisotropic three-dimensional MHD turbulence [PDF]

, 1996
Direct spectral method simulation of the three-dimensional magnetohydrodynamics (MHD) equations is used to explore anisotropy that develops from initially isotropic fluctuations as a consequence of a uniform applied magnetic field.
Matthaeus, William H., Oughton, Sean, Roberts, D. Aaron, Ghosh, Sanjoy, William H. Matthaeus, D. Aaron Roberts, Sanjoy Ghosh, Sean Oughton   +7 more
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A Numerical 3D‐2D Coupling Strategy for Simulating Landslide‐Generated Tsunamis in Complex Geometries: The Taan Fiord, Alaska, Case Study

Journal of Geophysical Research: Oceans, Volume 130, Issue 12, December 2025.
Abstract Landslide‐generated tsunamis represent a significant hazard, specifically in coastal, fjord, and lake environments. The accurate modeling of these complicated phenomena is crucial for risk assessment and preparation of mitigation strategies.
A. Romano, C. Cecioni, G. Bellotti, G. Barajas, J. L. Lara   +4 more
wiley   +1 more source

A weak turbulence theory for incompressible magnetohydrodynamics [PDF]

, 2000
We derive a weak turbulence formalism for incompressible magnetohydrodynamics. Three-wave interactions lead to a system of kinetic equations for the spectral densities of energy and helicity. The kinetic equations conserve energy in all wavevector planes
S. V. Nazarenko, Nazarenko, Sergey, S. Galtier, Galtier, S., Newell, Alan C., Pouquet, A., A. C. Newell, A. Pouquet   +7 more
core   +1 more source