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Purnama, Randi
Department of Mechanical Engineering, Institut Teknologi Sepuluh Nopember
Computer Science & IT

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Numerical Study of Characteristics of 3D Flow in Square Duct 90° Elbow with Diamond Bodied Disturbance Fernandes, Yogi Eka; Sutardi, Sutardi; Purnama, Randi
IPTEK Journal of Proceedings Series No 1 (2019): 4th International Seminar on Science and Technology 2018 (ISST 2018)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2019i1.5112

Abstract

The use of elbow in the fluid mechanics system produces a larger pressure drop. The purpose of this research is to know the flow characteristic through square channel with elbow 90. The diamond-shaped body disturbance is placed at 10° inside the elbow inlet. This research was conducted in 3D simulation with standard k-3 turbulence model. The cross-sectional area uses a square with a side size of 125 mm, then the hydraulic diameter (Dh) is 125 mm as well. The elbow curvature ratio (R / D) is set to 3. A body disorder with diagonal (l / D) ratio at 0.064, 0.08 and 0.1 is placed at 10° in the elbow inlet. The results in this study indicate that body disorders with diamond shape can delay the separation of flow and increase the intensity of turbulence flow. Finally, the results also show that the pressure drop is reduced
Co-Authors Fernandes, Yogi Eka Sutardi Sutardi