In the case of an elastically mounted rectangular prism with a side ratio of less than D/H = 0. 5 (where D: depth of a bluff body in the flow direction. H: height of a bluff body normal to the flow direction). it is well known that low-speed galloping appears at a lower reduced velocity than the resonant reduced velocity. https://www.markbroyard.com/flash-pick-weleda-skin-food-75ml-online-sale-flash-save/