Correction: Steady and Unsteady compressible Reduced-Order Models of a Zero-Net Mass-Flux Synthetic Jet Actuator

Abstract

In the "Result" paragraph of section IV.B, the over-prediction of the flow longitudinal momentum is not due to the boundary condition settings but due to the inefficient design of this benchmark actuator that generates a recirculation area in the inner side of the SJA outlet to the outer zones with enhancing of the vorticity that can be seen as a pre-mixing of the emanating jet with the outer quiescent air. This pre-mixing is not present in the ROM case due to the absence of the SJA tube that is not modeled. Thus, the flow efficient section is reduced in the ROM case compared to the SJA one which results in a greater acceleration of the flow in the longitudinal direction for the first case.