Comparison of Time-Resolved Experimental and Numerical Data in the Wake of a Full-Scale Passenger Car
To further reduce the aerodynamic drag of passenger vehicles, a deeper understanding of the flow field is required. Analysis methods like the dynamic mode decomposition (DMD) are useful to investigate unsteady flow phenomena around the vehicle. DMD results are only relevant for the aerodynamic devel...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Society of Automotive Engineers of Japan, Inc.
2020-10-01
|
| Series: | International Journal of Automotive Engineering |
| Online Access: | https://www.jstage.jst.go.jp/article/jsaeijae/11/4/11_20204576/_article/-char/ja |
| _version_ | 1797341164985122816 |
|---|---|
| author | Jonas Sebald Jan Reiß Marco Kiewat Thomas Indinger |
| author_facet | Jonas Sebald Jan Reiß Marco Kiewat Thomas Indinger |
| author_sort | Jonas Sebald |
| collection | DOAJ |
| description | To further reduce the aerodynamic drag of passenger vehicles, a deeper understanding of the flow field is required. Analysis methods like the dynamic mode decomposition (DMD) are useful to investigate unsteady flow phenomena around the vehicle. DMD results are only relevant for the aerodynamic development, if the used numerical data is able to predict the unsteady physical flow field. Therefore, in this study unsteady hot-wire data in the wake of a passenger vehicle is compared to a numerical dataset of an unsteady Spalart-Allmaras Delayed Detached Eddy simulation. Differences and wind tunnel effects are found and explained. |
| first_indexed | 2024-03-08T10:14:51Z |
| format | Article |
| id | doaj.art-ac70ff6f07914e03bde4a1db0326621d |
| institution | Directory Open Access Journal |
| issn | 2185-0992 |
| language | English |
| last_indexed | 2024-03-08T10:14:51Z |
| publishDate | 2020-10-01 |
| publisher | Society of Automotive Engineers of Japan, Inc. |
| record_format | Article |
| series | International Journal of Automotive Engineering |
| spelling | doaj.art-ac70ff6f07914e03bde4a1db0326621d2024-01-29T05:19:26ZengSociety of Automotive Engineers of Japan, Inc.International Journal of Automotive Engineering2185-09922020-10-0111418519210.20485/jsaeijae.11.4_185Comparison of Time-Resolved Experimental and Numerical Data in the Wake of a Full-Scale Passenger CarJonas Sebald0Jan Reiß1Marco Kiewat2Thomas Indinger3Technical University of MunichTechnical University of MunichAUDITechnical University of MunichTo further reduce the aerodynamic drag of passenger vehicles, a deeper understanding of the flow field is required. Analysis methods like the dynamic mode decomposition (DMD) are useful to investigate unsteady flow phenomena around the vehicle. DMD results are only relevant for the aerodynamic development, if the used numerical data is able to predict the unsteady physical flow field. Therefore, in this study unsteady hot-wire data in the wake of a passenger vehicle is compared to a numerical dataset of an unsteady Spalart-Allmaras Delayed Detached Eddy simulation. Differences and wind tunnel effects are found and explained.https://www.jstage.jst.go.jp/article/jsaeijae/11/4/11_20204576/_article/-char/ja |
| spellingShingle | Jonas Sebald Jan Reiß Marco Kiewat Thomas Indinger Comparison of Time-Resolved Experimental and Numerical Data in the Wake of a Full-Scale Passenger Car International Journal of Automotive Engineering |
| title | Comparison of Time-Resolved Experimental and Numerical Data in the Wake of a Full-Scale Passenger Car |
| title_full | Comparison of Time-Resolved Experimental and Numerical Data in the Wake of a Full-Scale Passenger Car |
| title_fullStr | Comparison of Time-Resolved Experimental and Numerical Data in the Wake of a Full-Scale Passenger Car |
| title_full_unstemmed | Comparison of Time-Resolved Experimental and Numerical Data in the Wake of a Full-Scale Passenger Car |
| title_short | Comparison of Time-Resolved Experimental and Numerical Data in the Wake of a Full-Scale Passenger Car |
| title_sort | comparison of time resolved experimental and numerical data in the wake of a full scale passenger car |
| url | https://www.jstage.jst.go.jp/article/jsaeijae/11/4/11_20204576/_article/-char/ja |
| work_keys_str_mv | AT jonassebald comparisonoftimeresolvedexperimentalandnumericaldatainthewakeofafullscalepassengercar AT janreiß comparisonoftimeresolvedexperimentalandnumericaldatainthewakeofafullscalepassengercar AT marcokiewat comparisonoftimeresolvedexperimentalandnumericaldatainthewakeofafullscalepassengercar AT thomasindinger comparisonoftimeresolvedexperimentalandnumericaldatainthewakeofafullscalepassengercar |