Results 31 to 40 of about 48,120 (302)

“Irregularization” of systems of conservation laws

open access: yesMaterials Theory, 2018
We explore new ways of regulating defect behavior in systems of conservation laws. Contrary to usual regularization schemes (such as a vanishing viscosity limit), which attempt to control defects by making them smoother, our schemes result in defects ...
Hunter Swan   +5 more
doaj   +1 more source

Approximate Symmetries and Conservation Laws for Mechanical Systems Described by Mixed Derivative Perturbed PDEs

open access: yes, 2023
This article focuses on developing and applying approximation techniques to derive conservation laws for the Timoshenko–Prescott mixed derivatives perturbed partial differential equations (PDEs).
Shamaoon A.   +3 more
core   +1 more source

Multisymplectic formulation of fluid dynamics using the inverse map [PDF]

open access: yes, 2007
13.02.14 KB. Ok to add accepted version to spiral, embargo expired. RS policyWe construct multisymplectic formulations of fluid dynamics using the inverse of the Lagrangian path map.
Cotter, CJ   +5 more
core   +1 more source

Integrable viscous conservation laws

open access: yes, 2015
We propose an extension of the Dubrovin-Zhang perturbative approach to the study of normal forms for non-Hamiltonian integrable scalar conservation laws. The explicit computation of the first few corrections leads to the conjecture that such normal forms
Moro, Antonio   +2 more
core   +1 more source

Self-Adjointness, Symmetries, and Conservation Laws for a Class of Wave Equations Incorporating Dissipation

open access: yesAbstract and Applied Analysis, 2013
In this work, we study the nonlinear self-adjointness and conservation laws for a class of wave equations with a dissipative source. We show that the equations are nonlinear self-adjoint.
Yang Wang, Long Wei
doaj   +1 more source

New conservation laws and exact solutions of the special case of the fifth-order KdV equation

open access: yesJournal of Ocean Engineering and Science, 2022
The current study deals with the Kaup-Kupershmidt (KK) equation to construct formal Lagrangian, conservation laws, and exact solutions. KK is basically a special case of the 5th-order KdV equation. The conservation laws obtained by using the conservation
Arzu Akbulut   +2 more
doaj   +1 more source

Blowup for Systems of Conservation Laws [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2000
The author considers an initial value problem for a system of conservation laws \(U_t+ F(U)_x= 0\), \(U(x,0)= U_0(x)\), where \(U= U(x,t)\in \mathbb{R}^3\), \(F: \mathbb{R}^3\to \mathbb{R}^3\) is smooth and strictly hyperbolic. It is presented a class of \(3\times 3\)-systems for which one can prescribe initial data such that the solution blows up in ...
openaire   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

Multi-Gear Bandits, Partial Conservation Laws, and Indexability

open access: yesMathematics, 2022
This paper considers what we propose to call multi-gear bandits, which are Markov decision processes modeling a generic dynamic and stochastic project fueled by a single resource and which admit multiple actions representing gears of operation naturally ...
José Niño-Mora
doaj   +1 more source

Growth Equation with a Conservation Law [PDF]

open access: yesMRS Proceedings, 1995
ABSTRACTWe investigate an interface growth equation with a conservation law. The interaction is characterized by an integral kernel. The equation contains the Kardar-Parisi-Zhang, Sun-Guo-Grant, and Molecular-Beam Epitaxy growth equations as special cases and allows for a unified investigation of growth equations.
openaire   +2 more sources

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