Effects of surface curvature on cavitation evolution and reloading

In this work,effects of surface curvature on cavitation evolution and structureloadings are investigated. We extended the latest techniques offluid-structure Riemann problem and the modified ghost fluidmethod to treat the flow-structure nonlinear interaction. Resultsdisclosed that a concave shape can strongly lead to not only shockfocus but also rarefaction wave intensification; suchintensification subsequently enhances local cavitation collapseand thus cavitation reloading. The magnitude of such enhancementincreases nonlinearly with the increase of surface curvature. Aconvex shape can weaken the shock impact and subsequent cavitationcollapse. However, such effect is well limited.