Abstract
Since powerful computational ressources are available, numerical simulation is one of the most attractive tools to bridge the gap between the experimental and analytical description of fluid flow phenomena. One of these tools is the direct numerical simulation (DNS) technique relying on a very high spatial and temporal resolution of fluid systems. Thus, all length scales of a fluid flow, only limited by the grid size, are captured by DNS. Since investigations of many fluid systems require a very fine resolution, considerable progress can only be made by both applying sophisticated numerical methods and using high performance computers. With the inhouse 3D DNS program FS3D (Free Surface 3D) based on the Volume-of-Fluid method it is possible to simulate two phase flows of fundamental interest in the automotive and aerospace industry, in meteorology and agriculture but also in the oil industry or medicine.
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