Computational analysis of flow field around Ahmed Car Model passing underneath a flyover
A flow structure around a ground vehicle has been studied by many researchers using numerous methods, either computational or experimental. However, no analysis of flow field generated by a car passing under a flyover has been carried out. One of the famous simplified models of a car is the Ahmed bo...
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| Format: | Article |
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2012
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| author | Musa, Md. Nor Osman, Kahar A. Hamat, Ab. Malik |
| author_facet | Musa, Md. Nor Osman, Kahar A. Hamat, Ab. Malik |
| author_sort | Musa, Md. Nor |
| collection | ePrints |
| description | A flow structure around a ground vehicle has been studied by many researchers using numerous methods, either computational or experimental. However, no analysis of flow field generated by a car passing under a flyover has been carried out. One of the famous simplified models of a car is the Ahmed body that has been established to investigate the influence of the flow structure on the drag. In this paper, we investigate a flow field around Ahmed body of a single cruising condition as the vehicle passes under a flyover, using a computational method with RANS equation. The main objective of this paper is to evaluate the turbulence kinetic energy and velocity magnitude developed within the wall boundary created by the flyover, to the air flow field that is generated by the Ahmed reference car. It was observed that the simulated airflow passes the vehicle was bounded by the wall of the flyover and consequently changes the pattern of the flow field. Understanding the characteristic of this flow field under a flyover is essential if one wants to maximize the recovery of the dissipated energy which, for example, can be used to power a small vertical-axis wind turbine to produce and store electrical energy for lighting under the flyover. |
| first_indexed | 2024-03-05T19:20:51Z |
| format | Article |
| id | utm.eprints-46719 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T19:20:51Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | utm.eprints-467192017-09-18T08:41:25Z http://eprints.utm.my/46719/ Computational analysis of flow field around Ahmed Car Model passing underneath a flyover Musa, Md. Nor Osman, Kahar A. Hamat, Ab. Malik TP Chemical technology A flow structure around a ground vehicle has been studied by many researchers using numerous methods, either computational or experimental. However, no analysis of flow field generated by a car passing under a flyover has been carried out. One of the famous simplified models of a car is the Ahmed body that has been established to investigate the influence of the flow structure on the drag. In this paper, we investigate a flow field around Ahmed body of a single cruising condition as the vehicle passes under a flyover, using a computational method with RANS equation. The main objective of this paper is to evaluate the turbulence kinetic energy and velocity magnitude developed within the wall boundary created by the flyover, to the air flow field that is generated by the Ahmed reference car. It was observed that the simulated airflow passes the vehicle was bounded by the wall of the flyover and consequently changes the pattern of the flow field. Understanding the characteristic of this flow field under a flyover is essential if one wants to maximize the recovery of the dissipated energy which, for example, can be used to power a small vertical-axis wind turbine to produce and store electrical energy for lighting under the flyover. 2012 Article PeerReviewed Musa, Md. Nor and Osman, Kahar and A. Hamat, Ab. Malik (2012) Computational analysis of flow field around Ahmed Car Model passing underneath a flyover. 4th International Meeting Of Advances In Thermofluids (Imat 2011), Pt 1 And 2, 1440 . pp. 190-198. ISSN 0094-243X http://dx.doi.org/10.1063/1.4704217 |
| spellingShingle | TP Chemical technology Musa, Md. Nor Osman, Kahar A. Hamat, Ab. Malik Computational analysis of flow field around Ahmed Car Model passing underneath a flyover |
| title | Computational analysis of flow field around Ahmed Car Model passing underneath a flyover |
| title_full | Computational analysis of flow field around Ahmed Car Model passing underneath a flyover |
| title_fullStr | Computational analysis of flow field around Ahmed Car Model passing underneath a flyover |
| title_full_unstemmed | Computational analysis of flow field around Ahmed Car Model passing underneath a flyover |
| title_short | Computational analysis of flow field around Ahmed Car Model passing underneath a flyover |
| title_sort | computational analysis of flow field around ahmed car model passing underneath a flyover |
| topic | TP Chemical technology |
| work_keys_str_mv | AT musamdnor computationalanalysisofflowfieldaroundahmedcarmodelpassingunderneathaflyover AT osmankahar computationalanalysisofflowfieldaroundahmedcarmodelpassingunderneathaflyover AT ahamatabmalik computationalanalysisofflowfieldaroundahmedcarmodelpassingunderneathaflyover |