| Autor(es): |
Lui, Hugo F. S.
;
Wolf, William R.
;
Braun, James
;
Rahbari, Iman
;
Paniagua, Guillermo
Número total de Autores: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | AIAA AVIATION 2021 FORUM; v. N/A, p. 11-pg., 2021-01-01. |
| Resumo | |
This paper details the Wall-Resolved Large Eddy Simulations (LES) of a supersonic vane cascade at Mach 2 inflow conditions. The main objective of this work is to investigate the unsteady characteristics of this flow configuration, including the shock-boundary layer interactions, via high-fidelity numerical simulations. Flow statistics are analyzed along the suction and pressure sides of the blade, with particular attention to the shock impingement regions and results are compared against the outcome of Reynolds-averaged Navier-Stokes (RANS) calculations. Isentropic Mach number and skin friction distribution over the blade surface between LES and RANS show good agreement on the blade suction side if the boundary layer is tripped. On the pressure side, the RANS simulations with kappa-omega l SST turbulence model suggest a more pronounced separation bubble at 60 percent of the chord, which locally modifies the shock-wave structure and the downstream flow characteristics. Finally, the Reynolds stresses are evaluated at multiple axial locations which reveal the impact of the shock wave on turbulence statistics within the boundary layer. (AU) | |
| Processo FAPESP: | 13/08293-7 - CECC - Centro de Engenharia e Ciências Computacionais |
| Beneficiário: | Munir Salomao Skaf |
| Modalidade de apoio: | Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs |
| Processo FAPESP: | 19/26196-5 - Simulações de grandes escalas de turbinas axiais supersônicas |
| Beneficiário: | Hugo Felippe da Silva Lui |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |