A short overview: 0- An initial mesh covers the solid part (= Lake Constance). 1- Fluid/solid elements are refined when the fluid/solid split fails. 2- Fluid/solid elements are refined when the fluid/solid split fails. 3- Fluid/solid elements are refined when the fluid/solid split fails. In the final step the fluid/solid splits are executed or if they fail a stopgap is applied or the gap is left open. We transfer these ideas to 3D, to tetras, to conformal transitons and to 10 000 parts. HOME contact michael.lautsch[at]lautsch-fe.com