Discretized integral hydrodynamics

被引:6
作者
Romero-Rochin, V
Rubi, JM
机构
[1] Univ Barcelona, Dept Fis Fonamental, E-08028 Barcelona, Spain
[2] Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico
来源
PHYSICAL REVIEW E | 1998年 / 58卷 / 02期
关键词
D O I
10.1103/PhysRevE.58.1843
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
Using an interpolant form for the gradient of a function of position, we write an integral version of the conservation equations for a fluid. In the appropriate limit, these become the usual conservation laws of mass, momentum, and energy. We also discuss the special cases of the Navier-Stokes equations for viscous flow and the Fourier law for thermal conduction in the presence of hydrodynamic fluctuations. By means of a discretization procedure, we show how the integral equations can give rise to the so-called ''particle dynamics'' of smoothed particle hydrodynamics and dissipative particle dynamics.
引用
收藏
页码:1843 / 1850
页数:8
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