Global classical solutions of the full compressible Navier-Stokes equations with cylindrical or spherical symmetry

被引:1
|
作者
Zhao, Xinhua
Yao, Lei [1 ]
机构
[1] Northwest Univ, Sch Math, Xian 710127, Peoples R China
基金
中国国家自然科学基金;
关键词
Full compressible Navier-Stokes equations; Cylindrical or spherical symmetry; Global classical solutions; Weighted estimates; POLYTROPIC IDEAL-GAS; BOUNDARY-VALUE-PROBLEMS; DENSITY-DEPENDENT VISCOSITY; HEAT-CONDUCTING FLUIDS; LARGE-TIME BEHAVIOR; LARGE INITIAL DATA; WEAK SOLUTIONS; VACUUM; EXISTENCE; MOTION;
D O I
10.1016/j.nonrwa.2016.06.008
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this paper, we consider the full compressible Navier-Stokes equations in N(N >= 2) space dimension with cylindrical or spherical symmetric initial data. The global existence of strong and classical solutions is established. The analysis is based on some delicate a priori estimates which depend on the assumption kappa(theta) = theta(q) where q >= 0 and (rho(0), theta(0)) is an element of H-2, (u(0), v(0), w(0)) is an element of H-0(1) boolean AND H-2. Compared with the results in Wen and Zhu (2014) and Qin, Yang, Yao and Zhou (2015), our results relax the restriction q > 0, when there is no initial vacuum and include the global existence of classical solutions for both the cylindrical or spherical symmetric cases, respectively. It should point out that we obtain the global classical solutions with the help of weighted H-3 estimates of (u, v, w, theta). (C) 2016 Elsevier Ltd. All rights reserved.
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页码:139 / 167
页数:29
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