Three-Dimensional Shock Topology Detection Method via Tomographic Reconstruction

Shock waves and shock-shock interaction are typical phenomena in supersonic or hypersonic flows that have significant impacts on aerodynamic performance. To obtain a comprehensive understanding of the mechanism shock wave interaction, detection (SWD) methods required. However, it is often challenging for most current SWD to identify relationship between (also known as topology). address this issue, paper proposes novel three-dimensional topology method based tomographic reconstruction strategy. This involves extracting parallel slices from flow field, then utilizing two-dimensional recognition algorithm lines. bands obtained by connecting lines every two adjacent slices, surfaces generated assembling bands. Interaction also formed points. The detected structure composed “point-line-band-surface”, with other obvious. Numerical results show proposed can be categorized into families. Moreover, free gaps, holes, un-physical fragments, which an improvement over existing methods.