Studi Numerik Karakteristik Aerodinamik Terhadap Penambahan Teardrop, Undercarriage Straight Skirt, Dan Boat Tail Pada Desain Model Kendaraan Truk Kargo Dengan Kecepatan 20

Murtaza, Murtaza (2025) Studi Numerik Karakteristik Aerodinamik Terhadap Penambahan Teardrop, Undercarriage Straight Skirt, Dan Boat Tail Pada Desain Model Kendaraan Truk Kargo Dengan Kecepatan 20. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Emisi karbon adalah salah satu penyumbang efek rumah kaca terbesar dibandingkan faktor penyumbang lainnya. Emisi karbon paling sering tercipta dari hasil sisa pembakaran sebuah kendaraan. Dengan begitu semakin besar konsumsi bahan bakar kendaraan maka akan semakin besar emisi carbon yang tercipta. Hal ini berkaitan dengan penggunaan energi pada kendaraan yang mana salah satu penggunaan energinya digunakan untuk melawan gaya hambat kendaraan. Singkatnya, salah satu gaya hambat kendaraan merupakan gaya hambat dari udara. Gaya tersebut berbanding lurus dengan luasan yang melawan hambatan yang ada. Oleh karena itu, model kendaraan memegang peranan penting untuk mengurangi gaya hambat yang diterima kendaraan. Penelitian dilakukan menggunakan pendekatan desain dan perhitungan matematis untuk menemukan model desain kendaraan yang paling optimal dalam upaya pengurangan konsumsi bahan bakar dan emisi karbon yang dihasilkan. Simulasi dilakukan dengan kondisi steady dengan beberapa pengaturan kecpatan aliran udara. Penelitian ini menggunakan model truk kargo tiga dimensi yang berukuran 12500mm x 4600mm x 2500mm dengan variasi model roof tapering (teardrop), side extender (undercarriage straight skirt), dan rear flaps (boat tail) dan dengan variasi kecepatan aliran udara sebesar 20
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Carbon emissions are one of the biggest contributors to the greenhouse effect compared to other contributing factors. Carbon emissions are most often created from the residual combustion of a vehicle. Therefore, the greater the fuel consumption of the vehicle, the greater the carbon emissions created. This is related to the use of energy in vehicles, one of which is used to counteract the drag of the vehicle. In short, one of the drag forces of the vehicle is the drag force of the air. The force is directly proportional to the area against the drag. Therefore, the vehicle model plays an important role in reducing the drag received by the vehicle.The research was conducted using a design approach and mathematical calculations to find the most optimal vehicle design model in an effort to reduce fuel consumption and carbon emissions produced. Simulations were carried out under steady conditions with several airflow speed settings. This study uses a three-dimensional cargo truck model measring 12500mm x 4600mm x 2500mm with variations in roof tapering (teardrop), side extender (undercarriage straight skirt), and rear flaps (boat tail) models and with airflow velocity variations of 20 m⁄s; 25 m⁄s; and 30 m⁄s. This numerical simulation uses a 3D steady flow solver with a k-ε Realizable turbulence model. Boundary conditions used are velocity inlet for the front wall, stationary wall for the left, top, and bottom side walls, symmetry for the right side wall, and pressure outlet for the back wall. With the entire wall setting is no-slip wall.The purpose of this study is to determine the visualization of the flow around the truck, the effect of design changes on reducing the Coefficient of Drag, and the effect of differences in airflow velocity on reducing

Item Type: Thesis (Other)
Uncontrolled Keywords: Truk Kargo, Coefficient of Drag, Coefficient of Lift, penghematan bahan bakar, reduksi emisi gas
Subjects: H Social Sciences > HE Transportation and Communications > HE551 Cargo handling. Harbors--Management.
T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method
T Technology > TJ Mechanical engineering and machinery > TJ230 Machine design
T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL521 Aerodynamics, Hypersonic.
Divisions: Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis
Depositing User: Murtaza Murtaza
Date Deposited: 30 Jan 2025 01:43
Last Modified: 30 Jan 2025 01:46
URI: http://repository.its.ac.id/id/eprint/116887

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