抄録
Using an Interface-Tracking Method coupled with an Immersed Boundary Method (IBM), a bubble-wall collision problem under the effect of gravity is resolved. The gas-liquid interface is captured by the Interface-Tracking Method, and the whole fluid field is described by the body (the interface) fitted coordinate system. Implementation of the wall in the fluid is based on the IBM. This coupled method enables us to investigate the dynamics of the flow between the bubble and the wall in detail. In the present study, the bubble-wall collision is analyzed, and a flow in the liquid film between the bubble and the wall is discussed.
