feature detection from vector quantities in a numerically simulated hypersonic flow field in combination with experimental flow visualization
In computational fluid dynamics visualization is a frequently used tool for data evaluation, understanding of flow characteristics, and qualitative comparison to flow visualizations originating from experiments. Building on an existing visualization software system, that allows for a careful selection of state-of-the-art visualization techniques and some extensions, it became possible to present various features of the data in a single image. The visualizations show vortex position and rotation as well as skin-friction lines, experimental oil-flow traces, and shock-wave positions. By adding experimental flow visualization, a comparison between numerical simulation and wind-tunnel flow becomes possible up to a high level of detail. Since some of the underlying algorithms are not yet described in detail in the visualization literature, some experiences gained from the implementation are illustrated.
feature detection vectorization simulation flow combinational experimentation experience flow visualization visualization computational fluid dynamics tool data evaluation understandability comparisons software systems select extensibility image posit rotate traces level of detail algorithm implementation skin art