Ionization and dissociation effects on boundary-layer stability
| Autor: | Fabio Pinna, Ethan S. Beyak, Helen L. Reed, Fernando Miró Miró |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Shock wave
020301 aerospace & aeronautics Materials science Linear stability theory Turbulence Mechanical Engineering Perturbation (astronomy) 02 engineering and technology Condensed Matter Physics 01 natural sciences Dissociation (chemistry) 010305 fluids & plasmas Boundary layer 0203 mechanical engineering Mechanics of Materials Chemical physics Ionization 0103 physical sciences Excitation |
| Zdroj: | Journal of Fluid Mechanics. 907 |
| ISSN: | 1469-7645 0022-1120 |
| DOI: | 10.1017/jfm.2020.786 |
| Popis: | The ever-increasing need for optimized atmospheric-entry and hypersonic-cruise vehicles requires an understanding of the coexisting high-enthalpy phenomena. These phenomena strongly condition the development of instabilities leading to the boundary layer's transition to turbulence. The present article explores how shock waves, internal-energy-mode excitation, species interdiffusion, dissociation and ionization condition boundary-layer perturbation growth related to second-mode instabilities. Linear stability theory and the e-factor envelopes, despite the extremely low relative shock angle. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|