Online Dynamic Mode Decomposition Methods for the Investigation of Unsteady Aerodynamics of the DrivAer Model (Second Report) - Application on Velocity Fields -

Marco Kiewat; Daiki Matsumoto; Lukas Haag; Vincent Zander; Thomas Indinger

doi:10.20485/jsaeijae.9.2_72

Research Paper

Online Dynamic Mode Decomposition Methods for the Investigation of Unsteady Aerodynamics of the DrivAer Model (Second Report)

- Application on Velocity Fields -

Marco Kiewat, Daiki Matsumoto, Lukas Haag, Vincent Zander, Thomas Indinger

著者情報

キーワード: heat · fluid, computational fluid dynamics, aerodynamic performance, Dynamic Mode Decomposition

ジャーナルオープンアクセス

2018 年 9 巻 2 号 p. 72-78

DOI https://doi.org/10.20485/jsaeijae.9.2_72

詳細

抄録

Temporally resolved flow fields are commonly averaged in time, and mostly the time-averaged flow fields and forces are used for the aerodynamic optimization of road vehicles. Online DMD is found to be well suited for studying transient flow effects and leads to a deeper understanding of the complex flow around the vehicle. The investigated velocity field is computed by a Detached Eddy Simulation of the DrivAer reference body. The CFD setup and key considerations for the application of online DMD on large data sets are outlined, and the most dominant extracted coherent flow structures are analyzed independently.

責任著者(Corresponding author)

訂正情報

J-STAGEへの登録はこちら（無料）