3-D reconstruction of fluid flow visualization images
Abstract
Cross-sectional images of a smoke flow visualization experiment in a gaseous coflowing jet are used to produce a three-dimensional reconstruction of the vortical structures present in the flow. Starting from a series of cross sections recorded on movie film, all images are digitized and stored in a computer. Image-processing algorithms are then used for noise filtering, contrast enhancement, and subsequent segmentation of the cross sections. The resulting data base is used to produce perspective views of the jet structure and to derive quantitative properties such as surface-to-volume ratio and entrainment. Holographic displays are also presented.
- Publication:
-
Flow Visualization IV
- Pub Date:
- 1987
- Bibcode:
- 1987flvi.proc..235A
- Keywords:
-
- Image Reconstruction;
- Numerical Flow Visualization;
- Three Dimensional Flow;
- Coordinate Transformations;
- Holography;
- Noise Reduction;
- Parallel Flow;
- Smoke Trails;
- Fluid Mechanics and Heat Transfer