|
|
|
| Title | Stream volume segmentation of grid-less flow simulation.
(In Book) |
|---|
| in | Topological Methods in Data Analysis and Visualization: Theory, Algorithms and Applications (Proc. of TopoInVis 2009) |
|---|
|
| Author(s) |
Harald Obermaier, Jörg Kuhnert, Martin Hering-Bertram, Hans Hagen |
|---|
|
| Keyword(s) | stream volume; moving least squares; mesh-free; segmentation; topology |
|---|
|
| Year |
2011
|
|---|
| Publisher | Springer |
|---|
|
| URL | http://link.springer.com/chapter/10.1007/978-3-642-15014-2_11 |
|---|
| Pages | 127--138 |
|---|
|
| BibTeX |  |
|---|
|
| Abstract |
We present a novel algorithm for the geometric extraction of stream volume segmentation for visualization of grid-less flow simula- tions. Our goal is the segmentation of different paths through a mixing tube where the flow is represented by scattered point sets approximated with moving least squares. The key challenges are the watertight con- struction of boundary representations from separatrices. These are ob- tained by integrating and intersecting stream surfaces starting at sep- aration and attachment lines at boundaries of flow obstacles. A major challenge is the robust integration of stream lines at boundaries with no-slip condition such that closed volume segments are obtained. Our re- sults show the segmentation of volumes taking consistent paths through a mixing tube with six partitioning blades. Slicing these volumes provides valuable insight into the quality of the mixing process.
|
|---|
|
|
