Effect of additional fin and thickness of basic plate of the ocean bottom unit (OBU) model using computational fluid dynamics methods.

Autor:	Kusuma, Yudiawan Fajar, Defianti, Hanni, Hasim, Fadilah, Yohanes, F. Andree
Předmět:	COMPUTATIONAL fluid dynamics OCEAN bottom IRON & steel plates OCEAN currents DRAG coefficient CROSS-flow (Aerodynamics)
Zdroj:	AIP Conference Proceedings; 2023, Vol. 2646 Issue 1, p1-6, 6p
Abstrakt:	Ocean Bottom Unit (OBU) is part of the tsunami buoy system located on the ocean floor. The OBU will be released from the transport vessels carrying the bouy tsunami system. The OBU prototype must withstand various conditions when it is gliding from a transport ship so that it can land perfectly and withstand strong ocean currents on the sea bottom. A method to study gliding performance of the OBU is Computational Fluid Dynamics (CFD). This study aims to find out which type of OBU model can provide large drag coefficients and small moment coefficients. There are 2 OBU models to be simulated, namely the finless OBU model (type 2) and the fin OBU model (type 1) with variations in flow speed. The simulation results show that the thickness of the base plate and fins makes the coefficient greater than the OBU type 2 model. In addition, the increase of the thickness of the base plate and fins makes the OBU type 1 model less stable when exposed to crossflow compared to the OBU model type 2. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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