Large time behavior of the solutions to a one-dimensional Stefan problem with a kinetic condition at the free boundary

2004 ◽  
Vol 15 (3) ◽  
pp. 297-313 ◽  
Author(s):  
D. HILHORST ◽  
F. ISSARD-ROCH ◽  
J. M. ROQUEJOFFRE
Keyword(s):  
Free Boundary ◽  
Stefan Problem ◽  
Large Time ◽  
Travelling Wave ◽  
Large Time Behavior ◽  
Time Behavior ◽  
Nonlocal Parabolic Equation ◽  
Self Similar Solution ◽  
Kinetic Condition ◽  
Self Similar

We consider a Stefan problem with a kinetic condition at the free boundary and prove the convergence of the solution as $t$ tends to infinity either to a travelling wave solution or to a self-similar solution. The key idea is to transform this problem into a problem for a single nonlocal parabolic equation which admits a comparison principle.

scholarly journals Large Time Behavior of Solutions to the Nonlinear Heat Equation with Absorption with Highly Singular Antisymmetric Initial Values

2020 ◽  
Vol 20 (2) ◽  
pp. 311-337
Author(s):  
Hattab Mouajria ◽  
Slim Tayachi ◽  
Fred B. Weissler
Keyword(s):  
Heat Equation ◽  
Large Time ◽  
Large Time Behavior ◽  
Nonlinear Heat Equation ◽  
Asymptotic Behavior Of Solutions ◽  
Well Posedness ◽  
Time Behavior ◽  
Initial Values ◽  
Self Similar ◽  
Similar Solutions

AbstractIn this paper, we study global well-posedness and long-time asymptotic behavior of solutions to the nonlinear heat equation with absorption, {u_{t}-\Delta u+\lvert u\rvert^{\alpha}u=0}, where {u=u(t,x)\in\mathbb{R}}, {(t,x)\in(0,\infty)\times\mathbb{R}^{N}} and {\alpha>0}. We focus particularly on highly singular initial values which are antisymmetric with respect to the variables {x_{1},x_{2},\ldots,x_{m}} for some {m\in\{1,2,\ldots,N\}}, such as {u_{0}=(-1)^{m}\partial_{1}\partial_{2}\cdots\partial_{m}\lvert\,{\cdot}\,% \rvert^{-\gamma}\in\mathcal{S}^{\prime}(\mathbb{R}^{N})}, {0<\gamma<N}. In fact, we show global well-posedness for initial data bounded in an appropriate sense by {u_{0}} for any {\alpha>0}. Our approach is to study well-posedness and large time behavior on sectorial domains of the form {\Omega_{m}=\{x\in\mathbb{R}^{N}:x_{1},\ldots,x_{m}>0\}}, and then to extend the results by reflection to solutions on {\mathbb{R}^{N}} which are antisymmetric. We show that the large time behavior depends on the relationship between α and {\frac{2}{\gamma+m}}, and we consider all three cases, α equal to, greater than, and less than {\frac{2}{\gamma+m}}. Our results include, among others, new examples of self-similar and asymptotically self-similar solutions.

LARGE TIME BEHAVIOR OF SOLUTIONS TO A SEMILINEAR HYPERBOLIC SYSTEM WITH RELAXATION

2007 ◽  
Vol 04 (01) ◽  
pp. 147-179 ◽  
Author(s):  
YOSHIHIRO UEDA ◽  
SHUICHI KAWASHIMA
Keyword(s):  
Hyperbolic System ◽  
Fundamental Solutions ◽  
Large Time Behavior ◽  
Time Behavior ◽  
Nonlinear Convection ◽  
Diffusion Wave ◽  
Decay Of Solutions ◽  
Self Similar Solution ◽  
Self Similar ◽  
Nonlinear Diffusion Wave

We are concerned with the initial value problem for a damped wave equation with a nonlinear convection term which is derived from a semilinear hyperbolic system with relaxation. We show the global existence and asymptotic decay of solutions in W1,p (1 ≤ p ≤ ∞) under smallness condition on the initial data. Moreover, we show that the solution approaches in W1,p (1 ≤ p ≤ ∞) the nonlinear diffusion wave expressed in terms of the self-similar solution of the Burgers equation as time tends to infinity. Our results are based on the detailed pointwise estimates for the fundamental solutions to the linearlized equation.

scholarly journals Asymptotic behavior of solutions to the Stefan problem with a kinetic condition at the free boundary

1989 ◽  
Vol 31 (1) ◽  
pp. 81-96 ◽  
Author(s):  
J. N. Dewynne ◽  
S. D. Howison ◽  
J. R. Ockendon ◽  
Weiqing Xie
Keyword(s):  
Free Boundary ◽  
Stefan Problem ◽  
Large Time ◽  
Initial Temperature ◽  
Asymptotic Behavior Of Solutions ◽  
Infinite Strip ◽  
Time Behaviour ◽  
Large Time Behaviour ◽  
Kinetic Undercooling ◽  
Kinetic Condition

AbstractWe study the large time behaviour of the free boundary for a one-phase Stefan problem with supercooling and a kinetic condition u = −ε|⋅ṡ| at the free boundary x = s(t). The problem is posed on the semi-infinite strip [0,∞) with unit Stefan number and bounded initial temperature ϕ(x) ≤ 0, such that ϕ → −1 − δ as x → ∞, where δ is constant. Special solutions and the asymptotic behaviour of the free boundary are considered for the cases ε ≥ 0 with δ negative, positive and zero, respectively. We show that, for ε > 0, the free boundary is asymptotic to , δt/ε if < δ > 0 respectively, and that when δ = 0 the large time behaviour of the free boundary depends more sensitively on the initial temperature. We also give a brief summary of the corresponding results for a radially symmetric spherical crystal with kinetic undercooling and Gibbs-Thomson conditions at the free boundary.

scholarly journals Global well-posedness of the full compressible Hall-MHD equations

2021 ◽  
Vol 10 (1) ◽  
pp. 1235-1254
Author(s):  
Qiang Tao ◽  
Canze Zhu
Keyword(s):  
Global Solution ◽  
Large Time ◽  
Initial Temperature ◽  
Large Time Behavior ◽  
Initial Energy ◽  
Mhd Equations ◽  
Well Posedness ◽  
Time Behavior ◽  
Magnetohydrodynamic Flows ◽  
Hall Mhd

Abstract This paper deals with a Cauchy problem of the full compressible Hall-magnetohydrodynamic flows. We establish the existence and uniqueness of global solution, provided that the initial energy is suitably small but the initial temperature allows large oscillations. In addition, the large time behavior of the global solution is obtained.

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