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Item type:Publication, Access status: with files , Analysis of coupling techniques for overset-grid finite-volume methods(2019-09); Coupling of unstructured, overlapping 3D grids in finite-volume methods (FVM) is usually based on a local interpolation of field values, which (a) is insufficient to guarantee mass conservation and (b) requires a sufficient overlap of the wetted domain. Effects of the non-conservative coupling are analysed and the mass-dependent pressure in incompressible FVM is stabilised by global mass conservation practices. Areas with an insufficient overlap are numerically manipulated to allow the simulation of dynamic body contact. This enhanced approach is validated and applied, e.g. within the simulation of a gear pump and for contact simulations of a cylinder/sphere with a wall. The latter reveal a significant increase and a coupling of additional resistance and inertia forces.Publicationtype: Doctoral Thesis513 695