An extended volume of fluid method and its application to single bubbles rising in a viscoelastic liquid. - Matthias Niethammer; Günter Brenn; Holger Marschall; Dieter Bothe (J. Comput. Phys., 2019)

On the molecular mechanism behind the bubble rise velocity jump discontinuity in viscoelastic liquids. - Dieter Bothe; Matthias Niethammer; Christian Pilz; Günter Brenn (CoRR, 2021)

An unstructured geometrical un-split VOF method for viscoelastic two-phase flows. - Matthias Niethammer; Muhammad Hassan Asghar; Dieter Bothe; Tomislav Maric (Comput. Phys. Commun., 2025)