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All Journal Jurnal Ilmiah Teknologi dan Rekayasa ELKHA : Jurnal Teknik Elektro Jurnal Teknologi Media Mesin: Majalah Teknik Mesin Turbo : Jurnal Program Studi Teknik Mesin Bina Teknika JAIM (Jurnal Abdi Masyarakat) Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi International Journal of Marine Engineering Innovation and Research Teknosains : Jurnal Sains,Teknologi dan Informatika Indonesian Journal of Society Engagement (IJSE) Cakrawala: Jurnal Pengabdian Masyarakat Global ABDIKOM
Fitri Wahyuni
Department Of Mechanical Engineering, Faculty Of Engineering, Universitas Pembangunan Nasional Veteran Jakarta
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Journal : Jurnal Teknologi

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HYDRODYNAMICS ANALYSIS OF JANUS SPHERE AT VARIATIONS OF THE REYNOLDS NUMBER James Julian; Waridho Iskandar; Fitri Wahyuni
Jurnal Teknologi Vol 15, No 2 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.2.315-324

Abstract

The hydrodynamics of the homogeneous and Janus spheres were compared computationally at various Reynolds number variations. The Janus sphere is divided into two parts: slippery, which is set as a free-slip wall, and sticky, which is arranged as a free-slip wall. The equation used is the RANS equation for laminar fluid flow. Research focuses more on hydrodynamic forces and visualization of fluid flow by using velocity contours and streamlines. The domains of computational processes are arranged in a rectangular shape. The Richardson Extrapolation method verifies the mesh and gives the result that the meh variation is within the convergence range. Mesh with 105 elements is used for further computation because it only gives the lowest error of 0.129%. Meanwhile, the validation results show that the computational process can follow the experimental results at 0°≤θ≤80°. The Janus sphere is hydrodynamically better than the homogeneous sphere, where the Cl produced is larger and the Cd produced is smaller. The Janus sphere can prevent separation at a Reynolds number of 20 and reduce the recirculation area at a Reynolds number of 50.
Co-Authors Adi Winarta, Adi Akhmad Nidhomuz Zaman Armansyah Armansyah Bunga, Nely Toding Chandra Teguh Trimulya Desta Sandya Prasvita Faiz Daffa Ulhaq Ferdyanto I Wayan, Marlon Managi Idris Marbawi James Julian Lomo Mula Tua Mirza Fauzan Lukiano Noverdo Saputra Nur Cholis Rifqi Ramadhani Rizki Aldi Anggara Saphira Anggraita Siswanto Tulus Hidayat Yusanto Waridho Iskandar Zackharia Rialmi