西安交通大学Marie-Jean THORAVAL教授应邀做学术报告

The impact of a drop has many applications from combustion to the spreading of crops diseases or three-dimensional printing. This fundamental phenomenon has therefore attracted a lot of interest from different fields. However, most studies have focused on the case of a drop containing only one fluid. Many applications involve complex liquids such as dispersions or emulsions. When a second immiscible phase is added into the drop, some more complex dynamics emerge. We will consider the simplest geometries where either a bubble, a particle or another immiscible liquid drop are added inside the impacting drop. They can produce new types of vertical splashing during the impact. We will investigate the conditions under which splashing is observed and propose some physical models to explain these vertical dynamics.