A NUMERICAL-METHOD FOR THE 3-DIMENSIONAL UNSTEADY INCOMPRESSIBLE NAVIER STOKES EQUATIONS

[摘要] Computations of unsteady incompressible flows are carried out using the three-dimensional unsteady Navier-Stokes equations. Space discretization of the equations is achieved by a finite-difference method in a generalized coordinate system. To an explicit time discretization is added an implicit smoothing technique. The pressure equation is solved by minimizing a discrete norm of the velocity divergence. The method is applied to study the flow around an impulsively started circular cylinder.

[发布日期] 1991-06-26

[效力级别]  Proceedings Paper

[关键词] FINITE-DIFFERENCE METHOD;UNSTEADY INCOMPRESSIBLE FLOW;NAVIER STOKES EQUATIONS