Numerical analysis on the aerodynamic characteristics of SUV car model install with vortex generator
The investigation of automotive aerodynamics involves analysing several forces operating on a car while driving on the road, such as drag and lift forces. The flow separation at the vehicle’s rear end is one of the primary causes of aerodynamic drag for automobile vehicles. It is feasible to improve...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Semarak Ilmu Publishing
2025
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| Online Access: | http://umpir.ump.edu.my/id/eprint/43852/ http://umpir.ump.edu.my/id/eprint/43852/2/Numerical%20analysis%20on%20the%20aerodynamic%20characteristics%20of%20SUV%20car%20model.pdf |
| _version_ | 1848826975085395968 |
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| author | Muhammad Amirul Hakimin, Zainondin Izuan Amin, Ishak Mohd Fuad, Yasak Arafat, Mohammad Nor Atiqah, Zolpakar Nurshafinaz, Mohd Maruai |
| author_facet | Muhammad Amirul Hakimin, Zainondin Izuan Amin, Ishak Mohd Fuad, Yasak Arafat, Mohammad Nor Atiqah, Zolpakar Nurshafinaz, Mohd Maruai |
| author_sort | Muhammad Amirul Hakimin, Zainondin |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | The investigation of automotive aerodynamics involves analysing several forces operating on a car while driving on the road, such as drag and lift forces. The flow separation at the vehicle’s rear end is one of the primary causes of aerodynamic drag for automobile vehicles. It is feasible to improve fuel efficiency by lowering the drag force. The study focuses on the influence of a vortex generator (VG) on the aerodynamics of a sport utility vehicle (SUV) car. The study aims to simulate fluid flow analysis for an SUV car that uses VG and without VG, as well as to assess the impact of a different configuration of VG and a varying number and fillet radius of VG. The number of VG are 3, 5, and 9. The different fillet radius of VG are 5, 10, and 15 mm. Using the Reynold-Averaged Navier Stokes Equation (RANS) in the numerical simulation, the Reynolds number at the computational domain is 1.1391 × 107 and 1.4808 × 107, which is determined by the height of the model and the freestream velocity. The results show that aerodynamic characteristics are significantly influenced by the number of VG and various size radius fillets of VG. From the result, 9 number of VG and 5 mm fillet radius obtained the lowest value of coefficient of drag, Cd compared with the others which is Cd = 0.3747 for 27.78 m/s and Cd = 0.5031 for 33.33 m/s, respectively. Furthermore, the analysis of flow structures suggested the locations of vortex formation and wake turbulence at the rear of the vehicle. In contrast, the 9 number of VG with a 5 mm radius fillet of VG emerged as the most suitable VG for this scenario, exhibiting a Cd value closest to the base model and the lowest Cd value. |
| first_indexed | 2025-11-15T03:53:21Z |
| format | Article |
| id | ump-43852 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T03:53:21Z |
| publishDate | 2025 |
| publisher | Semarak Ilmu Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-438522025-02-18T08:19:58Z http://umpir.ump.edu.my/id/eprint/43852/ Numerical analysis on the aerodynamic characteristics of SUV car model install with vortex generator Muhammad Amirul Hakimin, Zainondin Izuan Amin, Ishak Mohd Fuad, Yasak Arafat, Mohammad Nor Atiqah, Zolpakar Nurshafinaz, Mohd Maruai T Technology (General) TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics The investigation of automotive aerodynamics involves analysing several forces operating on a car while driving on the road, such as drag and lift forces. The flow separation at the vehicle’s rear end is one of the primary causes of aerodynamic drag for automobile vehicles. It is feasible to improve fuel efficiency by lowering the drag force. The study focuses on the influence of a vortex generator (VG) on the aerodynamics of a sport utility vehicle (SUV) car. The study aims to simulate fluid flow analysis for an SUV car that uses VG and without VG, as well as to assess the impact of a different configuration of VG and a varying number and fillet radius of VG. The number of VG are 3, 5, and 9. The different fillet radius of VG are 5, 10, and 15 mm. Using the Reynold-Averaged Navier Stokes Equation (RANS) in the numerical simulation, the Reynolds number at the computational domain is 1.1391 × 107 and 1.4808 × 107, which is determined by the height of the model and the freestream velocity. The results show that aerodynamic characteristics are significantly influenced by the number of VG and various size radius fillets of VG. From the result, 9 number of VG and 5 mm fillet radius obtained the lowest value of coefficient of drag, Cd compared with the others which is Cd = 0.3747 for 27.78 m/s and Cd = 0.5031 for 33.33 m/s, respectively. Furthermore, the analysis of flow structures suggested the locations of vortex formation and wake turbulence at the rear of the vehicle. In contrast, the 9 number of VG with a 5 mm radius fillet of VG emerged as the most suitable VG for this scenario, exhibiting a Cd value closest to the base model and the lowest Cd value. Semarak Ilmu Publishing 2025 Article PeerReviewed pdf en cc_by_nc_4 http://umpir.ump.edu.my/id/eprint/43852/2/Numerical%20analysis%20on%20the%20aerodynamic%20characteristics%20of%20SUV%20car%20model.pdf Muhammad Amirul Hakimin, Zainondin and Izuan Amin, Ishak and Mohd Fuad, Yasak and Arafat, Mohammad and Nor Atiqah, Zolpakar and Nurshafinaz, Mohd Maruai (2025) Numerical analysis on the aerodynamic characteristics of SUV car model install with vortex generator. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 125 (1). pp. 94-111. ISSN 2289-7879. (Published) https://doi.org/10.37934/arfmts.125.1.94111 https://doi.org/10.37934/arfmts.125.1.94111 |
| spellingShingle | T Technology (General) TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics Muhammad Amirul Hakimin, Zainondin Izuan Amin, Ishak Mohd Fuad, Yasak Arafat, Mohammad Nor Atiqah, Zolpakar Nurshafinaz, Mohd Maruai Numerical analysis on the aerodynamic characteristics of SUV car model install with vortex generator |
| title | Numerical analysis on the aerodynamic characteristics of SUV car model install with vortex generator |
| title_full | Numerical analysis on the aerodynamic characteristics of SUV car model install with vortex generator |
| title_fullStr | Numerical analysis on the aerodynamic characteristics of SUV car model install with vortex generator |
| title_full_unstemmed | Numerical analysis on the aerodynamic characteristics of SUV car model install with vortex generator |
| title_short | Numerical analysis on the aerodynamic characteristics of SUV car model install with vortex generator |
| title_sort | numerical analysis on the aerodynamic characteristics of suv car model install with vortex generator |
| topic | T Technology (General) TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics |
| url | http://umpir.ump.edu.my/id/eprint/43852/ http://umpir.ump.edu.my/id/eprint/43852/ http://umpir.ump.edu.my/id/eprint/43852/ http://umpir.ump.edu.my/id/eprint/43852/2/Numerical%20analysis%20on%20the%20aerodynamic%20characteristics%20of%20SUV%20car%20model.pdf |