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Farhan Fathori Nugroho
Institut Teknologi Dirgantara Adisutjipto
Aerospace Engineering Astronomy Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics

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Penggunaan Komputasi pada Analisis Dinamika Fluida di Airfoil NACA M-15 Muhammad Fauzan Haryadi; Farhan Fathori Nugroho
Cakrawala Jurnal Ilmiah Bidang Sains Vol 1, No 1 (2022): Juli
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (849.33 KB) | DOI: 10.28989/cakrawala.v1i1.1289

Abstract

Dalam kajian sebuah fenomena fluida, dapat dilakukan dengan beberapa pendekatan yakni: teoritis, eksperimen dan komputasi. Pendekatan teoritis merupakan metode paling sederhana namun hanya dibatasi oleh kasus-kasus sederhana. Untuk mendapatkan hasil yang akurat dan terkini, dilakukanlah metode eksperimen. Sayangnya, metode eksperimen memiliki tantangan dalam biaya dan perancangan alat-alat eksperimen yang terbilang mahal dan rumit. Oleh karena itu, metode observasi berbasis komputasi dilakukan dalam menghasilkan gambaran fenomena aliran fluida. Pada penelitian ini akan dikaji mengenai karakteristik dinamika fluida yang direpresentasikan dengan karakteristik koefisien angkat dan hambat pada NACA M-15 menggunakan komputasi dinamika fluida (CFD). Dari hasil yang didapatkan, dapat ditunjukkan bahwa secara komputasi karakteristik aerodinamika didapatkan nilai masing-masing koefisien angkat () dan hambat  tertinggi 1,2 dan 0,13, pada saat sudut serang 18o. Sehingga, didapati bahwasanya penggunaan komputasi dapat dilakukan untuk memberikan kontribusi di bidang aerodinamika khususnya kedirgantaraan.
SIMULASI NUMERIK KARAKTERISTIK AERODINAMIKA PADA AIRFOIL NACA 4415 DENGAN MEMPERTIMBANGKAN GROUND EFFECT Rr Saskia Rianasari Hayuningtyas; Farhan Fathori Nugroho; Bahrul Jalaali
Vortex Vol 4, No 1 (2023)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/vortex.v4i1.1339

Abstract

Ground effect phenomenon is found when the lift-device such as wing, is placed near the ground. This phenomenon influences the aerodynamics characteristic whereby its appearance is important to be investigated. This work aims to study the influence of ground effect towards aerodynamics characteristion on the NACA4415 airfoil by varying the airfoil’s angle of attack (AoA) as well as the height of ground proximity. Numerical approach conducted on Fluent was carried out while steady assumption, moving wall boundary, and Spalart-Allmaras turbulence model were utilized. The outcomes were aerodynamics characteristic represented by lift and drag coefficients. The results showed that maximum  was 1.736 on AoA 15o while maximum  was 0.0108 on AoA 18o respectively. It also found that ground proximity also was affecting the values of  and . On the height of 0.05 chord, maximum characteristic of lift was obtained while maximum drag was on the 0.8 chord at AoA 18o. It caused by airflow underneath the airfoil was faster due to the ground effect revaling the nozzle-effect, therefore the pressure was higher as according to the Bernoulli’s formulation. On the other hand, drag was related to the vortex generation in which AoA more influental than that of height. This work is hopefully beneficial as initial reference on the Wing-in-Ground (WIG) craft design, in particular on the airfoil selection. 
Co-Authors Bahrul Jalaali Muhammad Fauzan Haryadi Rr Saskia Rianasari Hayuningtyas