Turbulent channel flow is computed using the Partially Averaged Navier-Stokes (PANS) method which is derived from a parent RANS model and controlled by two parameters: the unresolved-to-total ratio of kinetic energy () and of dissipation (). Backscatter from a scale-similarity model is us...
开学季特惠,9月3日-11月30日,专业版用户每周AI豆3倍膨胀,快来领取吧! 摘要原文 Accurate prediction of wall-bounded flows with Reynolds-averaged Navier-Stokes turbulence models requires the improved modeling of physical processes that occur in turbulent flows such as the interaction of turbulent velocity...
These algorithms are applied to the Navier-Stokes equations in three-dimensional channels enclosed by two wavy walls whose amplitude is proportional to , ... PM Adler,AE Malevich,VV Mityushev - 《Acta Mechanica》 被引量: 33发表: 2013年 Steady viscous flow through a channel with wavy and plan...
In this chapter, the turbulence characteristics are discussed with reference to flow over a sediment bed. An application of Reynolds decomposition and time-averaging to the Navier–Stokes equations yields the Reynolds-averaged Navier–Stokes (RANS) equations, containing terms of Reynolds stresses. The ...
Homotopy based solutions of the Navier-Stokes equations for a porous channel with orthogonally moving wallsHang Xu; Zhiliang Lin; Shijun Liao*; Jiezhi Wu; Joseph MajdalaniPhysics of Fluids, 2010, 22(5): 053601.DOI: 10.1063/1.3392770
Flow analysis in a channel with a moving wall 来自 Semantic Scholar 喜欢 0 阅读量: 9 作者:IA Antyshev,SV Zhubrin,VP Motulevich 摘要: Numerical results obtained by solving the complete system of Navier-Stokes equations for a channel with one movable surface are evaluated....
A direct numerical simulation of a turbulent channel flow is performed. The unsteady Navier-Stokes equations are solved numerically at a Reynolds number of 3300, based on the mean centreline velocity and channel half-width, with about 4 × 106 grid points (192 × 129 × 160 in x,y,z). ...
Kim, N.N. Mansour: “Direct numerical simulation of turbulent channel flow up to R.e r = 590”. Phys. Fluids 11, 1999, pp. 943–945 Article MATH Google Scholar J. Sesterhenn: “A characteristic-type formulation of the Navier–Stokes equations for high order upwind schemes”. Computers...
An exceptionally simple tool for Direct Numerical Simulation (DNS) of the incompressible Navier-Stokes equations in cartesian geometry, adapted from the engine byLuchini & Quadrio, J. Comp. Phys. (2006)and designed under the "Keep It Simple, Stupid" principle. ...
Comparisons with simulated data from the Reynolds-averaged Navier–Stokes equations with the k– model suggest that these proposals successfully predict suspended sediment transport in a depth-limited flow with submerged vegetation. 展开 关键词: eddy viscosity open-channel flow sediment transport two-...