The role of body shape and mass in skimming on water

Over many years, there has been great practical interest in how solid bodies interact with and skim on liquid layers. In the present investigation, focus is important role of body mass shape such skimming motions. Considering a thin two-dimensional that impacts obliquely then rebounds shallow inviscid water layer, we develop mathematical model to predict quantitatively duration evolution fluid motions indeed success or failure whole skim. current setting, layer thickness small relative representative length. The combined roles increased are found be crucial, governed by similarity solution. relationship C ∼ M 2 / 3 between scaled curvature identified highlighted. particular, convex underbody alter interactive pressure way it inhibits occurrence super-elastic response exit vertical velocity height body, effect enables much heavier successfully provided above maintained.