在S2局部坐标下的二维不可压Navier-Stokes方程

李小如,王术,耿范

PDF(875 KB)
PDF(875 KB)
广州大学学报(自然科学版) ›› 2022, Vol. 21 ›› Issue (1) : 53-58.
数学

在S2局部坐标下的二维不可压Navier-Stokes方程

  • 李小如,王术,耿范
作者信息 +

Two dimensional incompressible Naiver Stokes equations in local coordinates of S2

  • LI Xiao ru, WANG Shu, GENG Fan(
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摘要

考虑S2局部坐标系下的二维不可压Naiver-Stokes方程的表达式及其在S2局部坐标系下解满足的能+量等式。利用黎曼度量,结合流形上的几个微分算子,推导在S2局部坐标下的Naiver-Stokes方程的具体表达式,并结合二维不可压Naiver-Stokes方程在R2中的能量守恒得到了在S2中的能量等式。+

Abstract

The expression of the two dimensional incompressible Naiver Stokes equation in the local coordinate system of S2 and the energy equation satisfied by the solution in the local coordinate system of S2 are considered. By using the Riemannian metric and combining several differential operators on the manifold, the specific expression of the Naiver Stokes equation in the local coordinate system is derived, and the energy equation on S2 is obtained by combining the energy conservation of the two dimensional incompressible Naiver Stokes equation in R2 .

关键词

黎曼度量 / S2 / S2 / 局部坐标 / Naiver-Stokes方程 / 能量等式+

Key words

Riemannian metric / S2 / S2 / local coordinates / Naiver Stokes equation / energy identity

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李小如,王术,耿范. 在S2局部坐标下的二维不可压Navier-Stokes方程. 广州大学学报(自然科学版). 2022, 21(1): 53-58
LI Xiao ru,WANG Shu,GENG Fan(. Two dimensional incompressible Naiver Stokes equations in local coordinates of S2. Journal of Guangzhou University(Natural Science Edition). 2022, 21(1): 53-58

参考文献

朱长江,邓引斌.偏微分方程教程[M].北京:科学出版社,2005.
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