1. For a river to ` meander,'secondary flow must dominate. 2. The flow in these regions is the secondary flow . 3. A secondary flow was triggered in September 2001. 4. Near the surface there may also be a slow secondary flow outward toward the perimeter. 5. In the context of meandering rivers, its effects are dominated by those of secondary flow . 6. From here, two opposing processes occur : ( 1 ) irrotational flow and ( 2 ) secondary flow . 7. This secondary flow carries sediment from the outside of the bend to the inside making the river more meandering. 8. On reaching the center the secondary flow is then upward toward the surface, progressively mixing with the primary flow. 9. Secondary flows can be observed in non-circular ducts as a result of turbulent shear stress in the turbulent flow.10. The secondary flow will quickly sweep the solid particles into a neat pile in the center of the bowl or cup.
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