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Computational Analysis of Shock Diffraction over Sharp Splitters
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It is well established that when a normal shock suddenly comes in an extended area region, it creates a shock wave diffraction phenomenon. Along with this phenomenon, some complex flow features such as vortex, shear layer and vortex-shock interactions develop in the perturbed region. This flow features majorly depend on grid size. Kelvin- Helmholtz instability can be obtained by using a very fine grid size. The present work considers diffraction phenomenon over sharp asymmetric splitters. The computational analysis has been carried out on FVM based computational fluid dynamics solver using AUSM scheme. In this present project work, a closed solid boundary is taken as flow domain with marked regions for high and low pressure. This pressure difference provides a particular Mach number over a sharp corner angle of 7° (in clock-wise).
Keywords
Shock Diffraction, Sharp Splitters, Shock-Vortex Interaction, Ansys Fluent.
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