Voronoi Fluid Particle Model for Euler Equations

被引：0

作者：

Mar Serrano

Pep Español

Ignacio Zúñiga

机构：

[1] Universidad Nacional de Educación a Distancia,Depto. Física Fundamental

来源：

Journal of Statistical Physics | 2005年 / 121卷

关键词：

Fluid particle models; Euler equations; Lagrangian turbulence;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We present a fluid particle model based on the Voronoi tessellation that allows one to represent an inviscid fluid in a Lagrangian description. The discrete model has all the required symmetries and structure of the continuum equations and can be understood as a linearly consistent discretization of Euler’s equations. Although the model is purely inviscid, we observe that the probability distribution of the accelerations of the Voronoi fluid particles shows the presence of tails at large accelerations, what is compatible with experimental Lagrangian turbulence observations.

引用

页码：133 / 147

页数：14

共 36 条

[1]

Falkovich G.(2001)Particles and fields in fluid turbulence Rev. Mod. Phys. 73 913-852

[2]

Gawedzki K.(2001)Fluid particle accelerations in fully developed turbulence Nature 409 1017-392

[3]

Vergassola M.(2002)Sph compressible turbulence Mon. Not. R Astron. Soc. 335 843-90

[4]

Porta A.L.(2001)Variational principles for relativistic smoothed particle hydrodynamics Mon. Not. R Astron. Soc. 328 381-211

[5]

Voth G.A.(1983)Ideal incompressible hydrodynamics in terms of the vortex momentum density Phys. Let. 96A 88-1

[6]

Crawford A.M.(1989)On a new way of writing the Navier Stokes equation: The Hamiltonian formalism Russ. Math. Surveys 44 210-287

[7]

Alexander J.(1999)Thermodynamically admissible form for discrete hydrodynamics Phys. Rev. Lett. 83 4542-240

[8]

Bodenshatz E(2003)Smoothed dissipative particle dynamics Phys. Rev. E 67 026705-1

[9]

Monaghan J.J.(2001)Thermodynamically consistent mesoscopic fluid particle model Phys. Rev. E 64 046115-undefined

[10]

Monaghan J.J.(2002)Long time correlations in Lagrangian dynamics: A key to intermittency in turbulence Phys. Rev. Lett. 89 254501-undefined

← 1 2 3 4 →