More than half a century has elapsed in designing a working scramjet-powered hypersonic vehicle. Considered harder than rocket engines, designing scramjets is a massive engineering challenge. However, newer design improvisations such as airframe integration and REST design, scramjet-powered hypersonic flights are close to becoming a reality.
Hypersonic flow phenomena like shock waves, shock-boundary layer interactions and laminar to turbulent transitions require flow-aligned, high-resolution meshes. Hexahedral meshes judiciously discretize these flow physics regions, thereby aiding in accurately predicting their influence on the flow.
Accurate flow prediction around reentry vehicles requires high-quality grids with flow feature-based alignment. Tools in GridPro like nesting, compact enrichment aid in building flow physics aligned grids precisely capturing flow features like shock, expansion fan, free shear layer, wake, etc.