Computational fluid dynamics simulations sometimes beat experiments Ad Emmen Numerical simulations of unsteady flows in for instance a tube or around an airplane, are problems that require huge amounts of computing time. Egon Krause from RWTH Aachen, explained this at the Mannheim Supercomputer conference. In one simulation, unexpected eddies popped up, that where later confirmed by experiments. Krause uses a large SNI-VPP30 supercomputer for his simulations. The layout and optimisation of super power stations based on utility boilers moves from empirical and experimental to simulation-based methods.
Industrial acceptance depends on a short turn-around time of the simulations.
A problem with 50 transport equations and a discretization with up to 1,000,000 grid cells was demonstrated. Uwe Harms Eighty years ago, Einstein developed the theory of general relativity. Now the largest parallel supercomputers are approaching the speed and memory requirements to solve the complete set of Einstein's equations. Simulation of full 3D simulations of events like colliding black holes and neutron stars are within reach. Ed Seidel, Max-Planck Institute for gravitational physics at Potsdam, Germany reported at the Mannheim Supercomputer Seminar.