FLUENT Fluent Software Trainin Ncct⊙tLD TRN-99-003 How Complex is the flow ◆ Extra strain rates Streamline curvature Lateral divergence Acceleration or deceleration Swirl Recirculation (or separation) Secondary flow ◆3 D perturbations Transpiration(blowing/suction Free-stream turbulence g Shear layers C Fluent Inc. 2/20,D5 © Fluent Inc. 2/20/01 Fluent Software Training TRN-99-003 How Complex is the Flow? u Extra strain rates l Streamline curvature l Lateral divergence l Acceleration or deceleration l Swirl l Recirculation (or separation) l Secondary flow u 3D perturbations u Transpiration (blowing/suction) u Free-stream turbulence u Interacting shear layers