Matches in SemOpenAlex for { <https://semopenalex.org/work/W2901576788> ?p ?o ?g. }
- W2901576788 endingPage "272" @default.
- W2901576788 startingPage "243" @default.
- W2901576788 abstract "The near-wake flow topology of a ground transportation system (GTS) is investigated using partially-averaged Navier–Stokes (PANS) simulations at Re=2.7×104. Recent numerical investigations for the GTS model using large eddy simulations (LES) showed an anti-symmetric flow topology (flow state II) in the vertical midplane compared to that observed in previous experimental studies (flow state I). The geometrical configuration of the GTS permits bi-stable behaviour, and the realisation of each of the two flow states, which are characterised by an asymmetrical flow topology, is achieved by varying the differencing scheme for the convective flux in the PANS simulations; AVL SMART schemes predict flow state I, while central differencing scheme (CDS) predicts flow state II. When the GTS model was placed away from the ground plane, the AVL SMART scheme fails to predict the flow asymmetry resulting in a pair of symmetrical vortices in the vertical midplane, while flow state II topology is observed when CDS is used. The switch from flow state I (II) to flow state II (I) is achieved by changing the numerical scheme from AVL SMART (CDS) to CDS (AVL SMART), with an intermediate transient-symmetric (TS) state being observed during the switching process. The numerical scheme in the PANS simulations thus plays a critical role in determining the initial flow topology in the near wake of the GTS." @default.
- W2901576788 created "2018-11-29" @default.
- W2901576788 creator A5004023249 @default.
- W2901576788 creator A5034589749 @default.
- W2901576788 creator A5052103903 @default.
- W2901576788 creator A5067678921 @default.
- W2901576788 creator A5076120870 @default.
- W2901576788 date "2018-12-01" @default.
- W2901576788 modified "2023-10-17" @default.
- W2901576788 title "Investigation of the near-wake flow topology of a simplified heavy vehicle using PANS simulations" @default.
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