Comparison of Drag Reduction Effect on Barge Model Ship Using Ultrafine Bubble and Microbubble Injection

Authors

  • Gunawan Department of Mechanical Engineering, Faculty of Engineering, Universitas Indonesia, Indonesia
  • Allessandro Setyo Anggito Utomo Department of Mechanical Engineering, Faculty of Engineering, Universitas Indonesia, Indonesia
  • Yanuar Department of Mechanical Engineering, Faculty of Engineering, Universitas Indonesia, Indonesia

DOI:

https://doi.org/10.37934/arfmts.96.2.134143

Keywords:

Energy efficiency, drag reduction, microbubble, ultrafine bubble, injection, optimum

Abstract

Energy efficiency is a global goal in the fight against global warming. Research on reducing drag is one of the ways to improve energy efficiency. The research method used is the injection of micro-sized bubbles and ultra-fine bubbles used in the barge ship model. Microbubble Drag Reduction (MBDR) and Ultrafine Bubble Drag Reduction (UFBDR) are two methods that can play an essential role in reducing drag on the surface of the ship's hull. Factors that can affect the effectiveness of these methods are the injection ratio, location, and coefficient of drag produced by both methods. The injection method discussed the use of the method, which was reviewed on a 2-meter towing tank and compared the two injection methods. The results provided by this research are to determine the injection ratio and the optimum injection location on the model ship and compare the effect of reducing drag and drag coefficient. The increases total resistance reduction of 6.87% compared to the reduction in resistance by microbubble injection.

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Author Biographies

Gunawan, Department of Mechanical Engineering, Faculty of Engineering, Universitas Indonesia, Indonesia

gunawan_kapal@eng.ui.ac.id

Allessandro Setyo Anggito Utomo, Department of Mechanical Engineering, Faculty of Engineering, Universitas Indonesia, Indonesia

allessandro.setyo@ui.ac.id

Yanuar, Department of Mechanical Engineering, Faculty of Engineering, Universitas Indonesia, Indonesia

yanuar@eng.ui.ac.id

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Published

2022-06-20

How to Cite

Gunawan, Allessandro Setyo Anggito Utomo, & Yanuar. (2022). Comparison of Drag Reduction Effect on Barge Model Ship Using Ultrafine Bubble and Microbubble Injection. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 96(2), 134–143. https://doi.org/10.37934/arfmts.96.2.134143

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