Article Per Year (5 Year)
p-Index From 2021 - 2026
0.562
P-Index
This Author published in this journals
All Journal Turbo : Jurnal Program Studi Teknik Mesin JTERA (Jurnal Teknologi Rekayasa)
Madhudhu, Fathin Muhammad
Unknown Affiliation
Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
THE EFFECT OF OFFSET RATIO ON OFFSET JET FLOW STRUCTURE Ramadhani, Rifqi; Julian, James; Wahyuni, Fitri; Purba, Riki Hendra; Madhudhu, Fathin Muhammad; Armadani, Elvi
TURBO [Tulisan Riset Berbasis Online] Vol 14, No 2 (2025): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i2.4538

Abstract

Jet flow is a crucial fluid dynamic phenomenon that has been extensively studied. It is essential for various industrial applications, including surface cleaning, flow control, and cooling electronic components.  Offset jet is an innovation in jet flow configuration that offers advantages in flow pattern control by expanding the impingement area and regulating surface pressure distribution. This study employed a Computational Fluid Dynamics (CFD) approach to investigate the influence of variations in the offset jet ratio on the aerodynamic characteristics of the flow, specifically the impingement zone area, pressure coefficient distribution, and skin friction coefficient. The standard k-ε turbulence model, utilizing a structured mesh and a Reynolds number of 10,000, was employed in this research. The number of mesh elements used was a fine mesh of 200,000 with an error percentage of 0.09436%. The results of the study show that an offset ratio of 3 produces the highest cf value of 0.0047 and a stable Cp distribution of 0.218, while also providing the best impingement zone area. These findings indicate that OR 3 is the most optimal configuration in terms of aerodynamics for precision system applications, with a focus on flow pattern control and wide impingement zone coverage.
Performance Evaluation of Liquid Cooling Systems in 18650 Batteries: A Case Study of Mass Flow Rate Variations in Mini-Channel Cold Plates Fourlando, Rainer Samuel; Julian, James; Topan, Anggie Wijaya; Purba, Riki Hendra; Madhudhu, Fathin Muhammad; Armadani, Elvi Wijaya; Wahyuni, Fitri
JTERA (Jurnal Teknologi Rekayasa) Vol 10, No 2: Desember 2025
Publisher : Politeknik Sukabumi

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pengelolaan energi termal yang esensial sangat penting bagi performa optimal, keamanan, dan umur pakai baterai lithium-ion (Li-ion), yang menghasilkan panas cukup besar selama operasi. Suhu berlebih dapat menyebabkan degradasi kapasitas dan thermal runaway. Studi ini secara numerik menyelidiki kinerja termal dari sistem pendingin cair yang menggunakan mini-channel cold plate untuk sebuah modul yang terdiri dari delapan baterai Li-ion tipe 18650. Tujuan utama penelitian ini adalah mengevaluasi pengaruh variasi laju alir massa pendingin (air) terhadap temperatur maksimum baterai (TMAX) dan keseragaman temperatur (ΔT). Model computational fluid dynamics (CFD) yang telah divalidasi dengan data eksperimen digunakan dalam analisis ini. Tiga variasi laju alir massa disimulasikan, yaitu 0,0005 kg/s, 0,0015 kg/s, dan 0,0025 kg/s. Hasilnya menunjukkan bahwa sistem yang diusulkan memiliki efisiensi tinggi, mampu menjaga TMAX baterai di bawah 26,5 °C pada semua konfigurasi, dengan penurunan lebih dari 49% dibandingkan kondisi tanpa pendinginan, di mana suhu mencapai 52 °C. Laju alir massa tertinggi (0,0025 kg/s) memberikan kinerja terbaik, dengan TMAX terendah sebesar 25,83 °C serta rata-rata penurunan temperatur tertinggi sebesar 50,5%. Selain itu, konfigurasi ini juga memberikan keseragaman termal yang lebih baik dan berhasil menjaga perbedaan temperatur internal setiap sel tetap di bawah ambang kritis 5 °C. Temperatur maksimum yang dicapai dengan sistem pendingin cair ini menunjukkan bahwa sistem tidak hanya mampu mencegah thermal runaway tetapi juga berkontribusi dalam memperpanjang siklus hidup dan daya tahan baterai. Sistem pendingin ini membantu meminimalkan mekanisme degradasi termal yang umumnya mempercepat penuaan baterai.
The Effect of The Bio-Inspired Airfoil NACA 4415 at High Reynolds Number Siswanto, Saphira Anggraita; Julian, James; Wahyuni, Fitri; Purba, Riki Hendra; Madhudhu, Fathin Muhammad; Armadani, Elvi
JTERA (Jurnal Teknologi Rekayasa) Vol 10, No 2: Desember 2025
Publisher : Politeknik Sukabumi

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The topic of airfoil modification and its impact on aerodynamic performance is a highly debated issue in aerospace engineering circles. This study examines the effect of the NACA 4415 bio-inspired nose airfoil on its aerodynamic performance by adding spinner dolphin and roughtoothed dolphin geometries to the leading edge using the Computational Fluid Dynamics (CFD) method at a Reynolds number of Re = 106. Simulations were conducted to analyze changes in the lift coefficient (Cl), drag coefficient (Cd), and moment coefficient (Cm), which serve as indicators of aerodynamic performance and stability. The results show that the baseline NACA 4415 airfoil produces the highest lift and the lowest drag overall, making it suitable for applications requiring maximum lift and minimum drag. Spinner dolphins has a smaller percentage increase in Cd, at 41.933%, compared to the baseline. In contrast, roughtoothed dolphins with an average percentage of 56.004% compared to the baseline exhibit a higher percentage increase in Cd. Conversely, in the Cl data, the percentage decreased in   dolphins has a larger average, namely -14.607%, compared to the baseline, whereas the spinner dolphin type only has an average of -8.713%. In the Cm data, the Roughtoothed Dolphin and Spinner Dolphin have higher and more stable Cm than NACA 4415. This study confirms that bio-inspired modifications can significantly impact aerodynamic performance, depending on operating conditions.
Co-Authors Armadani, Elvi Wijaya Elvi Armadani Fitri Wahyuni Fourlando, Rainer Samuel James Julian Ramadhani, Rifqi Riki Hendra Purba Siswanto, Saphira Anggraita Topan, Anggie Wijaya