The rapid acquisition of flow field characterization information is crucial for closed-loop active flow control. The proper orthogonal decomposition (POD) method is a widely used flow field downscaling modeling method to obtain flow characteristics effectively. Based on the POD method. a flow field reduced-order model (ROM) is constructed in this paper for the flow field control of a ... https://macorners.shop/product-category/engraved-mama-bear-necklace-gift-box/