Some special issues are considered in this final chapter. These include conjugate heat transfer, flows with free surfaces or variable fluid properties, meteorological and oceanographic applications, the treatment of moving boundaries which require moving grids, simulation of cavitation and fluid-structure interaction. Special effects in flows with heat and mass transfer, two phases and chemical reactions are briefly discussed. The solution forcing technique, as used, e.g., to prevent wave reflection at solution domain boundaries, is also described. Example calculations with commercial CFD software are used to demonstrate these special topics.