Publication Date:
2019-07-13
Description:
Scientific visualizations of two-dimensional compressible flow of a gas with discontinuities are presented. The numerical analogue to experimental techniques such as schlieren imaging, shadowgraphs, and interferograms are discussed. Edge detection techniques are utilized to identify the discontinuities. In particular, the zero crossing of the Laplacian of a field (usually density) is recommended for extracting the discontinuities. An algorithm to extract and quantify the discontinuities is presented. To illustrate the methods developed in the report, the example chosen is that of an unsteady interaction of a shock wave with a contact discontinuity.
Keywords:
Fluid Mechanics and Thermodynamics
Type:
International Conference on Computer Vision and Pattern Recognition; Jun 01, 2000; Hilton Head Island, SC; United States
Format:
application/pdf
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