Open AccessFlow field analysis of Ahmed model based on URANS
Author(s) -
Huajie Wu,
Shanwen Zhang
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1983/1/012021
Subject(s) - turbulence , flow (mathematics) , vortex , mechanics , field (mathematics) , physics , mathematics , pure mathematics
In order to obtain the flow field characteristics of the Ahmed model, flow field analysis is carried out by using standard k- ε turbulent model and URANS method. Results show that the flow field of Ahmed model presents the transient characteristics of periodic changes, the base vortex forms on the Ahmed model while the fluid is detached from the lower surface, and transports periodically downstream; the corner vortice formed on the Ahmed model is induced by the inclined pats of the tail-dip.