Analisa Numerik Pengaruh Penambahan Frontwing Dan Rearwing Terhadap Performa Mobil Formula Nogogeni Its Pada Kondisi Berbelok

Alattas, Said Ath-thaariq (2023) Analisa Numerik Pengaruh Penambahan Frontwing Dan Rearwing Terhadap Performa Mobil Formula Nogogeni Its Pada Kondisi Berbelok. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pada tahun 2020 Nogogeni ITS Team untuk pertama kalinya mengikuti kompetisi internasional Formula Society of Automotive Engineers Australasia (FSAE - A) yang merupakan kompetisi desain mahasiswa tahunan yang diadakan oleh Society of Automotive Engineers (SAE) International. Desain aerodinamis merupakan salah satu yang terpenting dalam suatu pengembangan terutama pada mobil Formula SAE. Adanya penambahan perangkat aerodinamika pada mobil seperti Frontwing, dan Rearwing dapat meningkatkan gaya angkat negatif (downforce). Performa aerodinamis downforce sangat penting dalam tikungan, namun desain biasanya dievaluasi melalui pengujian garis lurus wind-tunel. Pada proyek akhir ini dilakukan penelitian terkait pengaruh penambahan perangkat aerodinamika frontwing dan rearwing ketika berakselerasi pada lintasan berbelok dengan radius konstan untuk mengetahui performa perangkat aerodinamika pada mobil Formula Student Nogogeni ITS menggunakan simulasi numerik CFD Ansys Fluent. Kondisi batas pada domain simulasi dimodifikasi agar pola aliran mendekati kondisi aktualnya ketika berbelok. Radius belok mengacu pada event skidpad FSAE dengan diameter lintasan sebesar 15.25 m. Menggunakan variasi kecepatan pada aliran inlet 11.11 m/s, 12.5 m/s, 13.88 m/s, 15.27 m/s, dan 16.66 m/s. Pengujian simulasi numerik dilakukan untuk mengetahui performa Mobil Formula Student Nogogeni ITS berdasarkan hasil data kualitatif kontur, vector, streamline, permukaan iso, dan data kuantitatif koefisien Drag (CD), koefisien Lift (CL), dan koefisien Side (CS). berdasarkan hasil simulasi diketahui pengaruh penambahan frontwing dan rearwing pada kendaraan berupa kenaikkan nilai koefisien Drag (CD), koefisien Lift (CL), dan koefisien Side (CS) dengan rata-rata penambahan terhadap variasi kecepatanya adalah 98.94% koefisien drag (CD), 224.24% koefisien Lift (CL), dan 17.75% koefisien Side (CS). Data kualitatif detail struktur aliran disekitar kendaraan juga diketahui dan dianalisa sebagai bentuk evaluasi performa kendaraan dalam proses desain perancangan perangkat aerodinamika mobil Formula Student Nogogeni ITS.
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In 2020, the Nogogeni ITS Team took part in an international competition for the first time, Formula Society of Automotive Engineers Australasia (FSAE-A) which is an annual student design competition held by Society of Automotive Engineers (SAE) International. Aerodynamic design is one of the most important in a development, especially in Formula SAE cars. There are additional aerodynamic devices on cars such as Frontwing, and Rearwing that can increase negative lift (downforce). Aerodynamic performance downforce is especially important in bends, but designs are usually evaluated through straight-line testing wind-tunel. In this final project, research was conducted related to the effect of adding aerodynamic devices frontwing and rearwing, accelerating on a turning track with a constant radius to find out the performance of the aerodynamic devices on the ITS Nogogeni Formula Student car using Ansys Fluent CFD numerical simulation. The boundary conditions in the simulation domain are modified so that the flow pattern approaches the actual conditions when turning. Turning radius refers to skidpad events at FSAE with a track diameter of 15.25 m. Using velocity variations on the flow inlet 11.11 m/s, 12.5 m/s, 13.88 m/s, 15.27 m/s and 16.66 m/s. Numerical simulation tests were carried out to determine the performance of the ITS Nogogeni Formula Student Car based on the results of contour, vector, qualitative data. streamline, iso surface, and Drag coefficient quantitative data (CD), Lift coefficient (CL), and Side coefficient (CS). based on the simulation results it is known that the effect of addition frontwing and rearwing on vehicles in the form of an increase in the value of the Drag coefficient (CD), Lift coefficient (CL), and Side coefficient (CS) with an average addition to the speed variation of 98.94% drag coefficient (CD), 224.24% Lift coefficient (CL), and 17.75% Side coefficient (CS). Detailed qualitative data of the flow structure around the vehicle is also known and analyzed as a form of vehicle performance evaluation in the design process of the aerodynamic design of the Formula Student Nogogeni ITS car.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	FSAE-A, Drag Coefficient, Lift Coefficient, Pressure Coefficient, Frontwing, Rearwing, Formula Student Nogogeni, CFD, Cornering Performance
Subjects:	Q Science > QC Physics > QC151 Fluid dynamics T Technology > TA Engineering (General). Civil engineering (General) > TA357 Computational fluid dynamics. Fluid Mechanics
Divisions:	Faculty of Vocational > Mechanical Industrial Engineering
Depositing User:	Said Ath-thaariq Alattas
Date Deposited:	09 Nov 2023 06:21
Last Modified:	09 Nov 2023 06:21
URI:	http://repository.its.ac.id/id/eprint/103696

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