Experimental and numerical investigation on the water entry of wedges with different cross-sections

The water entry problem of wedges has attracted a great deal of research; the effect of geometric curvature on the water entry of rigid sections is yet to be analyzed. In this paper, two types of wedges with different cross-sectional curvatures were selected as the research objects: model A (Convex) and model B (Concave). We numerically and experimentally study the influence of the wedge curvature difference on their water entry flow and load characteristics, focused on the flow separation and impact pressure differences of wedges with different cross-sectional curvatures, and analyzed the corresponding relationship between the characteristics of flow separation and impact pressure.