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Euler方程与Navier-Stokes方程解的全局存在性研究

Global Existence of the Solution to the Euler and Navier-Stokes Equations
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摘要 研究了Euler方程及Navier-Stokes方程,通过讨论方程中压力项p与速度场u之间的关系,在一些温和的假设下,利用Sobolev不等式及Gagliargo-Nirenberg不等式,得到了在Sobolev空间中Euler方程解的全局存在性以及Navier-Stokes方程在小初值情形下的解的全局存在性的一些结果. We study the three dimensional Euler and Navier-Stokes equations in the sobolev space.By exploring relations of the scalar pressure and the fluid velocity,and applying the sobolev inequality /Gagliargo -Nirenberg inequality,we attain global existence of the solution in time to the Euler equations and Navier-Stokes equations in the sobolev space when the initial data ||u_0|| _(L^3) is small.
出处 《湘潭大学自然科学学报》 CAS CSCD 北大核心 2010年第4期24-27,共4页 Natural Science Journal of Xiangtan University
基金 上海市高校选拔培养优秀青年教师科研专项基金项目(sdj08016) 上海市自然科学基金项目(09ZR1420600) 上海市教委创新项目(08YZ198)
关键词 EULER方程 NAVIER-STOKES方程 压力项 速度场 全局存在性 Euler equations Navier-Stokes equations pressure velocity global existence
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参考文献9

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