Abstract
<p><em>Body is one of mandatory components for the main vehicle, which is a car because the face of the car is located on the body. Moreover, the car used for the body competition must not only be good visually but also have to look at its aerodynamics. In this study, discussing the aerodynamics of a prototype energy-efficient car body with carbon fiber material before it is produced and applied it must first be simulated aerodynamically on an aerodynamic simulation software. The vehicle to be simulated uses a 1:1 scale assuming the actual conditions. From the simulations carried out by the three body type models, the results are Model 1 with maximum Velocity of 64.0925 m/s and a maximum pressure of 1663.09 Pa and a Drag coefficient of: 309.85976, Lift coefficient of: 125.52961, Drag force of : 189.7891 N and Lift force of: 76.886889 N. Model 2 with a maximum Velocity of 58.14 m/s and a maximum pressure of 1350.55 Pa, Drag coefficient of : 399.09712, Lift coefficient of: 455.23564 , Drag force of : 244.44699N and Lift force of: 278.83183 N. Model 3 with a maximum Velocity of 59.8387 m/s and a maximum pressure of 1136.72 Pa, Drag coefficient of : 610,89875, Lift coefficient of: 764,99562, Drag force of: 374,17548 N and Lift force of: 468,55982 N. Based on results analysis using ansys software, Model 1 was chosen because it has the smallest Drag Coefficient, Lift Coefficient, Drag Force and Lift Force.</em></p>
Highlights
Body is one of mandatory components for the main vehicle, which is a car because the face of the car is located on the body
The car used for the body competition must be good visually and have to look at its aerodynamics
Based on results analysis using ansys software, Model 1 was chosen because it has the smallest Drag Coefficient, Lift Coefficient, Drag Force and Lift Force
Summary
Jumlah kendaraan bermotor adalah 118 922 708 meningkat menjadi 126 508 776 pada tahun 2018 dan meningkat lagi 133 617 012 unit pada tahun 2019 (Badan Pusat Statistik, 2017). Berbagai cara agar dapat merancang body aerodinamis suatu kendaraan salah satunya yang dapat dilakukan adalah dengan menggunakan metode CFD. Penelitian ini bertujuan membahas tentang aerodinamis sebuah body kendaraan mobil hemat energi prototipe dengan bahan fibercarbon sebelum diproduksi dan diaplikasikan terlebih dahulu harus disimulasikan aerodinamis pada sebuah software simulasi aerodinamis. 3. Simulasi Body Mobil Hemat Energi Simulasi body bertujuan memilih model body yang paling aerodinamis dengan mengetahui besar distribusi Koefisien Drag, Koefisien Lift, Drag force dan Lift force. Simulasi aerodinamis pada desain body bertujuan untuk mengetahui besar distribusi Koefisien Drag, Koefisien Lift, Drag force dan Lift force. Dalam penelitian kali ini dibuat tiga model desain yang nantinya akan disimulasikan dan dianalisa kemudian berdasarkan hasil Analisa akan dipilih body yang paling aerodinamis untuk direalisasikan. Pada Desain Model 2 yang telah disesuaikan dengan peraturan dalam Panduan Kompetisi Mobil Hemat Energi diperoleh dimensi sebagai berikut :
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