2013/04/18 by Juergen Piest, Piest, Juergen
Physics and Astronomy · #FOS: Physical sciences #General Physics (physics.gen-ph) #physics.gen-ph
paper · pdf · doi:10.48550/arxiv.1304.8058
25 pages, no figures. Original article has been combined with a consecutive paper
arxiv created 2013/11/21 · arxiv updated 2017/09/22
The hydrodynamic equation derived by N-particle statistical mechanics is investigated. This is an attempt to provide additional information concerning the closure problem of turbulence theory. The equation is interpreted as mean velocity equation for turbulent fluid flow. The third-order term of the friction force is calculated. Multilinear mode coupling theory is applied in order to obtain formulas for the third- und fourth-order equilibrium time correlation functions appearing in the expression. The force term is obtained as a convolution integral containing higher order gradients of the velocity field.