Loading...
Please wait, while we are loading the content...
Similar Documents
Turning Flows into Trees : Graph Analytics for Aerodynamic Flows
| Content Provider | Semantic Scholar |
|---|---|
| Author | Vermeire, Brian C. |
| Copyright Year | 2016 |
| Abstract | Computational Fluid Dynamics (CFD) provides valuable simulation tools to the industry. In recent years, the development of the underlying algorithms and hardware resulted in a steep increase in the size of the data generated by CFD-solvers. The resulting I/O bottleneck can be alleviated by the use of contour trees : trees that capture the nesting relationship of isosurfaces of scalar fields, and thus describe the structure of data sets in a compact way. Recent works have demonstrated the possibility of computing contour trees in-situ at the time of the simulation. In this project we investigated how PyFR, a CFD-solver developed at Imperial College could be extended with in-situ contour tree analysis capabilities. In order to do so, we implemented a number of contour tree related algorithms and evaluated their performance. We also proposed a data structure called the Compact Format that uses the contour tree to index subregions of the data. After discarding insignificant regions of the data, this format can be up to 80% smaller than a full mesh, yet it is able preserve all the important information required. We demonstrated this by building a visual interface and implementing a tracking algorithm, both using the Compact Format as the only input. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.imperial.ac.uk/media/imperial-college/faculty-of-engineering/computing/public/DanielSimig.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
