The Second-Order Projection Method for the Backward-Facing Step Flow

摘要: Abstract In an effort to demonstrate the validity of second-order projection method for incompressible and viscous flows inside irregular domains, we use study flow in two-dimensional channel with a backward-facing step. The emphasis our is on separation reattachment phenomena. Calculations are performed over wide range Reynolds numbers, including laminar, transitional, turbulent regimes defined by experiments. laminar regime, find excellent agreement experiments terms dependence length number streamwise velocity profiles. For numbers beyond where there no experimental data available comparison, characteristic structures similar those observed three-dimensional such physically unstable flows, able show certain numerical convergence statistical behavior solution. Comparison random vortex also made found both solutions.