1. Practical Course SC & V More on Boundaries Dr. Miriam Mehl Institut für Informatik Schwerpunkt Wissenschaftliches Rechnen

2. Examples

3. Boundary Conditions NOSLIP FREESLIP INFLOW OUTFLOW additional input parameters problem-specific routines flexibility easiness, efficiency

4. New Algorithm compute time step dt set boundary values + specific boundary values compute preliminary velocities solve pressure equation compute final velocities

5. General Geometries flag field: obstacle & fluid restriction to NOSLIP bit-coded cell- and boundary-types

6. New Algorithm compute time step dt set boundary values + specific boundary values compute preliminary velocities solve pressure equation compute final velocities

7. Pressure Boundaries given pressure difference / values u and v: Neumann boundary new input parameters new flags