Aerodynamic Analysis of Diesel Engine Prototype Vehicle Body Design Using Ansys Fluent
Abstract
Transportation industry is the third largest energy consumer, the focus on energy saving in vehicles and reducing exhaust emissions is major concern. Aerodynamics is one of the important subjects in vehicle engineering today. The more aerodynamic the vehicle, the lighter the engine performance, which can reduce fuel usage. This study aims to examine the effect of vehicle body design on the value of drag coefficient (Cd), lift coefficient (), and the ratio between lift coefficient and drag coefficient (/Cd). The method in this research is a numerical method that utilizes the CFD feature in the Ansys Fluent 2024 R1. The drag coefficient value with a speed of 10 m/s is 0.0155, a speed of 20 m/s is 0.0110, and a speed of 30 m/s is 0.0083. While the value of the lift coefficient with a speed of 10 m/s is obtained worth 0.0177, a speed of 20 m/s worth 0.0358, and a speed of 10 m/s worth 0.0455. Then the vehicle body design obtained the value of the /Cd ratio with a speed of 10 m/s worth 1.1419, a speed of 20 m/s worth 3.2545, and a speed of 30 m/s worth 5.4819. The conclusion this research is that the design of the vehicle body has a drag coefficient value decreasing as the speed increases and conversely the lift coefficient value increases. Based on the /Cd ratio value, it indicates that the vehicle body design is an aerodynamic design because the higher /Cd ratio, the more efficient the vehicle performance.
References
Badrawada, I. G. G., Purwanto, A., & Firlanda, E. R. (2019). Analisa Aerodinamika Bodi Kendaraan Mataram Proto Diesel dengan ANSYS 15.0. Jurnal Engine: Energi, Manufaktur, Dan Material, 3(1), 8–14.
Hidayat, M. F. (2016). Analisa Aerodinamika Airfoil Naca 0021 dengan Ansys Fluent. Jurnal Kajian Teknik Mesin, 1(1), 43–59.
Hidayati, N. A., Setiaji, F., Yaqin, M., Ulfa, D. M., & Choiron, M. A. (2017). Analisis Aerodinamis pada Variasi Bentuk Ekor Desain Bodi Mobil Hemat Energi. J. Energi Dan Manufaktur, 10(2), 66–70.
Jhon, J. S., & Utomo, M. S. K. T. S. (2017). Analisis Aerodinamika Body Mobil Hemat Energi Antawirya Residual-Sat dengan Menggunakan Metode Computational Fluid Dynamics. JURNAL TEKNIK MESIN, 5(1), 50–59.
Kemendikbudristek. (2024). Pedoman Kontes Mobil Hemat Energi (KMHE) Perguruan Tinggi 2024.
Putra, R. P., Yuvenda, D., Setiyo, M., Andrizal, A., & Martias, M. (2022). Body City Car Design of Two Passengers Capacity: A Numerical Simulation Study. Automotive Experiences, 5(2), 163–172.
Rina, Fardinal, Putra, R. K., Yetri, Y., & Aulia, A. P. (2023). Aerodynamic Analysis of The “Marapi Evo 1” Car Prototype Using CFD Software. JOURNAL OF DYNAMICS (International Journal of Dynamics in Engineering and Sciences), 8(2), 60–65.
Sianipar, R. M. B., Hiendro, A., & Wicaksono, R. A. (2021). Simulasi Aerodinamika Bodi Mobil Listrik Fakultas Teknik Menggunakan Computational Fluid Dynamics (CFD). JTRAIN: Jurnal Teknologi Rekayasa Teknik Mesin, 2(2), 135–141.
Wibowo, B. S., Harefa, J. S., & Abdi, M. Z. (2022). Analisis Aerodinamika Kendaraan Tipe Prototype Tim Riset Hemat Energi Teknik Mesin UBB. BULLET: Jurnal Multidisiplin Ilmu, 1(05), 880–885.
Winoko, Y. A., Arifin, I. N., & Ro’isatin, U. A. (2019). Analysis of The Mixture Fuels to The Performance of Diesel Engine. JEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering), 4(2), 83–90.
Zhang, Z., Wang, Q., Song, S., Zhang, C., Ren, L., & Zhang, Y. (2022). Joint Research on Aerodynamic Characteristics and Handling Stability of Racing Car under Different Body Attitudes. Energies, 15(1), 1–29. https://doi.org/10.3390/en15010393
Zhao, J., Xi, X., Na, Q., Wang, S., Kadry, S. N., & Kumar, P. M. (2021). The Technological Innovation of Hybrid and Plug-in Electric Vehicles for Environment Carbon Pollution Control. Environmental Impact Assessment Review, 86, 106506. https://doi.org/https://doi.org/10.1016/j.eiar.2020.106506
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