Robust and efficient computation of turbulent flows around civil transport aircraft at flight Reynolds numbers
This work aims at providing numerical methods that enable the robust and efficient simulation of turbulent flows around civil transport aircraft configurations at flight Reynolds numbers. Robustness problems related to the multigrid treatment of advanced transport equation turbulence models have bee...
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| Veröffentlicht in: | Aerospace science and technology 2005-11, Vol.9 (8), p.672-680 |
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| creator | Fassbender, Jens K. |
| description | This work aims at providing numerical methods that enable the robust and efficient simulation of turbulent flows around civil transport aircraft configurations at flight Reynolds numbers. Robustness problems related to the multigrid treatment of advanced transport equation turbulence models have been identified preventing convergence of simulations at high or flight Reynolds numbers. Therefore the application of multigrid to the turbulence equations is omitted while the multigrid treatment of the mean flow equations stays unchanged. Moreover, a fully implicit time integration scheme – a DDADI approach – is applied to the turbulence equations. The new approach raised robustness to a sufficient level to converge viscous computations at flight Reynolds numbers. Furthermore, the convergence speed of aerodynamic coefficients for three dimensional applications has also been improved significantly. |
| doi_str_mv | 10.1016/j.ast.2005.09.003 |
| format | Article |
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| identifier | ISSN: 1270-9638 |
| ispartof | Aerospace science and technology, 2005-11, Vol.9 (8), p.672-680 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Air transportation and traffic Applied sciences Computational methods in fluid dynamics Exact sciences and technology Flight Reynolds numbers Fluid dynamics Fundamental areas of phenomenology (including applications) Ground, air and sea transportation, marine construction Multigrid method Navier–Stokes equations Physics Robustness Stability analysis Turbulence equations Turbulent flows |
| title | Robust and efficient computation of turbulent flows around civil transport aircraft at flight Reynolds numbers |
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