Vadim Dyadechko

Learn More
Volume-of-Fluid (VoF) methods [1] are widely used to approximate material interfaces in Eule-rian fluid flow simulations. Instead of direct interface tracking, the VoF methods calculate the location of the interface at each time step from the solution data, namely from the cell-wise material volumes. This strategy faces no problem changing the topology of(More)
An advanced Volume-of-Fluid or VOFp rocedure for locally conserva-tivereconstruction of multi-materialinterfaces based on volumefraction information in cellso fa nu nstructured mesh is presented in this paper. The procedure employs improvedneighbordefinitions and topological consistency checks of the interface for computing am ore accurate interface(More)
strongly supports academic freedom and a researcher's right to publish; as an institution, however, the Laboratory does not endorse the viewpoint of a publication or guarantee its technical correctness. ABSTRACT The rezoning step is an important part of the Arbitrary Lagrangian-Eulerian (ALE) simulation cycle. The objective of the rezoning algorithm is to(More)
An important part of the Arbitrary Lagrangian-Eulerian method is the rezoning or mesh improvement step after completion of the Lagrangian step where the mesh is deformed according to the flow. A procedure is presented here to optimize the quality of elements in 3D solid meshes by node repositioning. The procedure aims to improve the quality of boundary mesh(More)
Volume-of-Fluid (VoF) methods [1] for decades provided a robust material interface model for the multi-material Eulerian/ALE fluid flow simulations. Instead of direct interface tracking, the VoF methods calculate the interface location at each time step from the solution data, namely from the volumes of the cell fractions occupied by different materials(More)
  • 1