Abstract
A forced plane wall jet (PWJ) is used as the model flow field to study the linear and nonlinear interactions within complex wall-bounded flows. Large-scale, large-amplitude forcing is used to isolate an energy-transfer pathway within the flow. The direction of this transfer is a forward or inverse cascade, depending on the streamwise location. It is also interpreted that the PWJ naturally transfers energy from the near-wall boundary-layer structures to the outer free-shear-layer structures.
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