Online Dynamic Mode Decomposition Methods for the Investigation of Unsteady Aerodynamics of the DrivAer Model (Second Report)
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...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Society of Automotive Engineers of Japan, Inc.
2018-04-01
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| Series: | International Journal of Automotive Engineering |
| Online Access: | https://www.jstage.jst.go.jp/article/jsaeijae/9/2/9_20184091/_article/-char/ja |
| _version_ | 1827383283869024256 |
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| author | Marco Kiewat Daiki Matsumoto Lukas Haag Vincent Zander Thomas Indinger |
| author_facet | Marco Kiewat Daiki Matsumoto Lukas Haag Vincent Zander Thomas Indinger |
| author_sort | Marco Kiewat |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-08T14:37:59Z |
| format | Article |
| id | doaj.art-2a1aebff172a45398085a19a8a0d7abc |
| institution | Directory Open Access Journal |
| issn | 2185-0992 |
| language | English |
| last_indexed | 2024-03-08T14:37:59Z |
| publishDate | 2018-04-01 |
| publisher | Society of Automotive Engineers of Japan, Inc. |
| record_format | Article |
| series | International Journal of Automotive Engineering |
| spelling | doaj.art-2a1aebff172a45398085a19a8a0d7abc2024-01-12T01:50:23ZengSociety of Automotive Engineers of Japan, Inc.International Journal of Automotive Engineering2185-09922018-04-0192727810.20485/jsaeijae.9.2_72Online Dynamic Mode Decomposition Methods for the Investigation of Unsteady Aerodynamics of the DrivAer Model (Second Report)Marco Kiewat0Daiki Matsumoto1Lukas Haag2Vincent Zander3Thomas Indinger4Technical University of MunichTechnical University of MunichTechnical University of MunichTechnical University of MunichTechnical University of MunichTemporally 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.https://www.jstage.jst.go.jp/article/jsaeijae/9/2/9_20184091/_article/-char/ja |
| spellingShingle | Marco Kiewat Daiki Matsumoto Lukas Haag Vincent Zander Thomas Indinger Online Dynamic Mode Decomposition Methods for the Investigation of Unsteady Aerodynamics of the DrivAer Model (Second Report) International Journal of Automotive Engineering |
| title | Online Dynamic Mode Decomposition Methods for the Investigation of Unsteady Aerodynamics of the DrivAer Model (Second Report) |
| title_full | Online Dynamic Mode Decomposition Methods for the Investigation of Unsteady Aerodynamics of the DrivAer Model (Second Report) |
| title_fullStr | Online Dynamic Mode Decomposition Methods for the Investigation of Unsteady Aerodynamics of the DrivAer Model (Second Report) |
| title_full_unstemmed | Online Dynamic Mode Decomposition Methods for the Investigation of Unsteady Aerodynamics of the DrivAer Model (Second Report) |
| title_short | Online Dynamic Mode Decomposition Methods for the Investigation of Unsteady Aerodynamics of the DrivAer Model (Second Report) |
| title_sort | online dynamic mode decomposition methods for the investigation of unsteady aerodynamics of the drivaer model second report |
| url | https://www.jstage.jst.go.jp/article/jsaeijae/9/2/9_20184091/_article/-char/ja |
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