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In two spatial dimensions, there are very few global existence results for the Kuramoto-Sivashinsky equation. The majority of the few results in the literature are strongly anisotropic, i.e. are results of thin-domain type. In the spatially…

Analysis of PDEs · Mathematics 2021-09-03 David M. Ambrose , Anna L. Mazzucato

In this paper we are interested in a rigorous derivation of the Kuramoto-Sivashinsky equation (K--S) in a Free Boundary Problem. As a paradigm, we consider a two-dimensional Stefan problem in a strip, a simplified version of a solid-liquid…

Analysis of PDEs · Mathematics 2009-07-17 Claude-Michel Brauner , Josephus Hulshof , Luca Lorenzi

In this study, approximate solution of Kuramoto-Sivashinsky Equation, by the reduced differential transform method, are presented. We apply this method to an example. Thus, we have obtained numerical solution Kuramoto-Sivashinsky equation.…

Numerical Analysis · Mathematics 2015-03-19 Omer Acan , Yildiray Keskin

The large scale properties of spatiotemporal chaos in the 2d Kuramoto-Sivashinsky equation are studied using an explicit coarse graining scheme. A set of intermediate equations are obtained. They describe interactions between the small…

Soft Condensed Matter · Physics 2016-08-31 Bruce Boghosian , Carson C. Chow , Terence Hwa

There is little analytical theory for the behavior of solutions of the Kuramoto-Sivashinsky equation in two spatial dimensions over long times. We study the case in which the spatial domain is a two-dimensional torus. In this case, the…

Analysis of PDEs · Mathematics 2017-08-30 David M. Ambrose , Anna L. Mazzucato

In this paper, the invariant subspace method is applied to the time fractional modified Kuramoto-Sivashinsky partial differential equation. The obtained reduced system of nonlinear ordinary fractional equations is solved by the Laplace…

Analysis of PDEs · Mathematics 2015-03-31 A. Ouhadan , E. H. El Kinani

In this article we study the solution of the Kuramoto-Sivashinsky equation (for surface erosion or surface growth) on a bounded interval subject to a random forcing term. We show that a unique solution to the equation exists for all time…

Dynamical Systems · Mathematics 2007-05-23 Jinqiao Duan , Vincent Ervin

We undertake a systematic exploration of recurrent patterns in a 1-dimensional Kuramoto-Sivashinsky system. For a small, but already rather turbulent system, the long-time dynamics takes place on a low-dimensional invariant manifold. A set…

Pattern Formation and Solitons · Physics 2009-11-13 Yueheng Lan , Predrag Cvitanovic

In this article, we consider a non-local variant of the Kuramoto-Sivashinsky equation in three dimensions (2D interface). Besides showing the global wellposedness of this equation we also obtain some qualitative properties of the solutions.…

Analysis of PDEs · Mathematics 2020-08-03 Jiao He , Rafael Granero-Belinchón

Initial-boundary value problems for the $n$-dimensional ($n$ is a natural number from the interval [2,7]) Kuramoto-Sivashinsky equation posed on smooth bounded domains in $\mathbb{R}^n$ were considered. The existence and uniqueness of…

Analysis of PDEs · Mathematics 2022-05-24 N. A. Larkin

This paper addresses sampled-data control of 2D Kuramoto-Sivashinsky equation over a rectangular domain. We suggest to divide the 2D rectangular into N sub-domains, where sensors provide spatially averaged or point state measurements to be…

Analysis of PDEs · Mathematics 2020-12-01 Wen Kang , Emilia Fridman

The Kuramoto-Sivashinsky equation is a prototypical chaotic nonlinear partial differential equation (PDE) in which the size of the spatial domain plays the role of a bifurcation parameter. We investigate the changing dynamics of the…

Dynamical Systems · Mathematics 2019-02-27 Russell A. Edson , J. E. Bunder , Trent W. Mattner , A. J. Roberts

We discuss a numerical scheme to solve the continuum Kardar-Parisi-Zhang equation in generic spatial dimensions. It is based on a momentum-space discretization of the continuum equation and on a pseudo-spectral approximation of the…

Statistical Mechanics · Physics 2009-11-07 Lorenzo Giada , Achille Giacometti , Maurice Rossi

A two-dimensional (2D) generalization of the stabilized Kuramoto - Sivashinsky (KS) system is presented. It is based on the Kadomtsev-Petviashvili (KP) equation including dissipation of the generic (Newell -- Whitehead -- Segel, NWS) type…

Pattern Formation and Solitons · Physics 2009-11-07 Bao-Feng Feng , Boris A. Malomed , Takuji Kawahara

In this paper, two boundary controllers are proposed to stabilize the origin of the nonlinear Kuramoto-Sivashinsky equation under intermittent measurements. More precisely, the spatial domain is divided into two sub-domains. The state of…

Optimization and Control · Mathematics 2022-04-06 M. Maghenem , C. Prieur , E. Witrant

Kolmogorov flow in two dimensions - the two-dimensional Navier-Stokes equations with a sinusoidal body force - is considered over extended periodic domains to reveal localised spatiotemporal complexity. The flow response mimicks the forcing…

Fluid Dynamics · Physics 2015-06-16 Dan Lucas , Rich R. Kerswell

This manuscript introduces a fourth-order Runge-Kutta based implicit-explicit scheme in time along with compact fourth-order finite difference scheme in space for the solution of one-dimensional Kuramoto-Sivashinsky equation with periodic…

Numerical Analysis · Mathematics 2019-11-28 Harish Bhatt , Abhinandan Chowdhury

An initial-boundary value problem for the n-dimensional ($n$ is a natural number from the interval [2,7]) Kuramoto-Sivashinsky-Zakharov-Kuznetsov equation posed on smooth bounded domains in $\mathbb{R}^n$ was considered. The existence and…

Analysis of PDEs · Mathematics 2022-05-24 Nikolai Larkin

All complex fluid motions, such as transition and turbulence, obeying the Navier-Stokes equations are non-linear phenomena. Some aspects of the non-linear terms of these equations are not well understood and are, in fact, misunderstood. The…

Chaotic Dynamics · Physics 2007-05-23 Lun-Shin Yao

A symplectic pseudospectral time-domain (SPSTD) scheme is developed to solve Schrodinger equation. Instead of spatial finite differences in conventional finite-difference time-domain (FDTD) method, the fast Fourier transform is used to…

Computational Physics · Physics 2018-05-09 Jing Shen , Wei E. I. Sha , Xiaojing Kuang , Jinhua Hu , Zhixiang Huang , Xianliang Wu
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