| Author(s): |
Miotto, Renato
;
Zigunov, Fernando
;
Wolf, William
Total Authors: 3
|
| Document type: | Journal article |
| Source: | AIAA AVIATION FORUM AND ASCEND 2024; v. N/A, p. 13-pg., 2024-01-01. |
| Abstract | |
We perform an assessment of pressure field reconstruction techniques for image velocimetry data. Three techniques are examined: a matrix omnidirectional integration method (OS-MODI), a Green's function integral approach (GFI) and a novel neural-network approach (NN). While the OS-MODI excels in noise-free conditions and structured meshes, the NN method, proposed in this study, offers superior performance in noisy environments, besides being mesh-free. For unstructured mesh analyses, challenges with ill-conditioned cells prompt sophisticated mesh generation strategies. Moreover, a simplistic application of the constant midpoint rule to compute the integrals of the boundary elements within the GFI method leads to issues with singularity. Despite obstacles, the OS-MODI and GFI show promise, with NN emerging as a robust solution for meshless noisy data. (AU) | |
| FAPESP's process: | 13/08293-7 - CCES - Center for Computational Engineering and Sciences |
| Grantee: | Munir Salomao Skaf |
| Support Opportunities: | Research Grants - Research, Innovation and Dissemination Centers - RIDC |
| FAPESP's process: | 22/09196-4 - Improving the understanding of unsteady aerodynamic flows via high-fidelity simulations, analytical modeling and deep learning techniques |
| Grantee: | Renato Fuzaro Miotto |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 21/06448-0 - High-fidelity numerical simulations applied in unsteady aerodynamics, turbulence and aeroacoustics |
| Grantee: | William Roberto Wolf |
| Support Opportunities: | Research Grants - Young Investigators Grants - Phase 2 |
| FAPESP's process: | 23/13431-1 - Analysis of unsteady fluid flows through flow imaging and neural implicit functions |
| Grantee: | Renato Fuzaro Miotto |
| Support Opportunities: | Scholarships abroad - Research Internship - Post-doctor |