Multiphase flows including strong interface effects like surface tension have a wide range of applications.
How to represent the geometry (i.e. the free boundary) constitutes the main design decision for a solution strategy for this type of problems. We review certain strategies with an emphasis on so called mesh moving methods.
Several real world applications are presented that are solved effectively by this mesh moving method.
In the presentation the ingredients of the methods like ALE, node doubling and subspace projection method are discussed.