| Author(s): |
Abreu, Diego F.
;
Junqueira-Junior, Carlos
;
Dauricio, Eron T. V.
;
Azevedo, Joao Luiz F.
Total Authors: 4
|
| Document type: | Journal article |
| Source: | AIAA AVIATION 2022 FORUM; v. N/A, p. 16-pg., 2022-01-01. |
| Abstract | |
The present study is concerned with large-eddy simulations (LES) of supersonic jet flows. The work addresses, in particular, the simulation of a perfectly expanded free jet flow with an exit Mach number of 1.4 and an exit temperature equal to the ambient temperature. Calculations are performed using a nodal discontinuous Galerkin method. The present effort studies the effects of mesh and polynomial refinement on the solution. The present calculations consider computational meshes and polynomial orders such that the number of degrees of freedom (DOFs) in the solution ranges from 50 to 410 million. Mean velocity results and root mean square (RMS) values of velocity fluctuations indicate a better agreement with experimental data as the resolution is increased. The generated data provide a good understanding of the effects of increasing the discretization refinement for LES calculations of jet flows. The present results can guide future simulations of similar flow configurations. (AU) | |
| FAPESP's process: | 13/07375-0 - CeMEAI - Center for Mathematical Sciences Applied to Industry |
| Grantee: | Francisco Louzada Neto |
| Support Opportunities: | Research Grants - Research, Innovation and Dissemination Centers - RIDC |
| FAPESP's process: | 18/05524-1 - Wall models for use in Large Eddy Simulations of turbulent flows with non equilibrium effects |
| Grantee: | Eron Tiago Viana Dauricio |
| Support Opportunities: | Scholarships in Brazil - Doctorate |