A CFD study of twin Impinging jets in a cross-flow
Journal article
Ostheimer, Daniel and Yang, Zhiyin 2012. A CFD study of twin Impinging jets in a cross-flow. The Open Numerical Methods Journal. https://doi.org/10.2174/1876389801204010024
| Authors | Ostheimer, Daniel and Yang, Zhiyin |
|---|---|
| Abstract | A very complicated three-dimensional (3D) flow field is generated beneath a Vertical/Short Take-Off and Landing (VSTOL) aircraft when it is operated near the ground. This flow field can be represented by the configuration of twin impinging jets along the spanwise direction in a cross-flow. This paper describes a Computational Fluid Dynamics (CFD) study of this flow using the Reynolds Averaged Navier-Stokes (RANS) approach with a Reynolds Stress Model (RSM). The use of an RSM potentially offers a compromise between the computational efficiency of a two equation turbulence model and accuracy closer to that of Large Eddy Simulation (LES) although it will not be as accurate as LES. The current numerical results are validated against experimental data and the mean velocity profiles are reasonably well predicted by both the standard k-ε model and the RSM with slightly better prediction by the RSM. However, the Reynolds stress prediction by the RSM is poor compared with the experimental data, indicating that to capture the detailed unsteady flow features an LES is needed. |
| Keywords | Aeronautical engineering; CFD; RANS |
| Year | 2012 |
| Journal | The Open Numerical Methods Journal |
| Publisher | Bentham Open |
| ISSN | 18763898 |
| Digital Object Identifier (DOI) | https://doi.org/10.2174/1876389801204010024 |
| Web address (URL) | http://hdl.handle.net/10545/620665 |
| hdl:10545/620665 | |
| Publication dates | 17 Jan 2012 |
| Publication process dates | |
| Deposited | 28 Oct 2016, 15:34 |
| Rights | Archived with thanks to The Open Numerical Methods Journal |
| Contributors | University of Derby |
| File | File Access Level Open |
| File | File Access Level Open |
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