Method for assessing the dynamics and efficiency of diving fins

• Autorzy: Grządziela Andrzej , Szymak Piotr , Piskur Paweł

Identyfikatory

DOI

10.37190/ABB-01589-2020-06

• Języki publikacji: EN

Abstrakty

EN

This article presents a method for an evaluation of the dynamic ability and efficiency of diving fins. There is paucity in the literature on the process of selecting optimal fins. As a result, there are efforts made to develop a methodology for selecting fins that meet the proposed criteria. In the present study, an analysis on the two types of fins most popular within the commercial market was conducted. The experiment took place in a test water tunnel fully equipped with a measuring system and strain gauges for recording forced interaction between the moving fin and flowing water. The tested fins rested on an artificial leg, which moved respectively, thereby developing movement algorithms. This forced fluid flow was implemented by a pump that was able to control the fluids velocity, and a non-invasive method involving an ultrasonic flow meter was used to measure the fluids velocity. Finally, the fin efficiency was calculated as the ratio of multiplication of generated thrust to electrical energy consumption whilst also considering the mechanical efficiency of the leg manipulator. The results of these experiments are discussed in depth and a method is created for the subsequent stage in which a new type of fins called biomimetic is to be analyzed and compared.

Słowa kluczowe

EN

efficiency of diving fins; water tunnel; manipulator of diver’s leg

PL

wydajność płetw; tunel wodny; manipulator nogi nurka

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2020
• Tom: Vol. 22, no. 4
• Strony: 139--150
• Opis fizyczny: Bibliogr. 20 poz., fot., rys., tab., wykr.

Twórcy

autor

Grządziela Andrzej

• Institute of Construction and Operation of Vessels, Faculty of Mechanical and Electrical Engineering, Polish Naval Academy, Gdynia, Poland

autor

Szymak Piotr

• Institute of Electrical Engineering and Automatics, Faculty of Mechanical and Electrical Engineering, Polish Naval Academy, Gdynia, Poland

autor

Piskur Paweł

• Institute of Electrical Engineering and Automatics, Faculty of Mechanical and Electrical Engineering, Polish Naval Academy, Gdynia, Poland

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