Abstract
An investigation into unsteady shock wave reflections over three-dimensional intersecting wedges is described. The finite volume method with the MUSCL-Hancock interpretation is used on self-adaptive unstructured meshes. Numerical results demonstrate that three-dimensional Mach reflection region predicted by the relations of two-dimensional oblique shock wave reflection has limitations because of the three-dimensional effect of shock reflections. An atypical three-dimensional structure appears in this region, namely the second type of three-dimensional Mach stem. Besides, for different combinations of shock wave Mach numbers and wedge angles, the three-dimensional four-shock Mach reflections or three-shock regular reflections appear in the corner of the two intersecting wedges.
| Original language | English |
|---|---|
| Pages (from-to) | 205-212 |
| Number of pages | 8 |
| Journal | Lixue Xuebao/Chinese Journal of Theoretical and Applied Mechanics |
| Volume | 44 |
| Issue number | 2 |
| Publication status | Published - Mar 2012 |
| Externally published | Yes |
Keywords
- Numerical simulation
- Three-dimensional Mach stem
- Three-dimensional intersecting wedges
- Unsteady shock wave