Strouhal Number Measurement for Novel Biomimetic Folding Fins Using an Image Processing Method

被引：13

作者：

Piskur, Pawel ^{[1
]}

机构：

[1] Polish Naval Acad, Fac Mech & Elect Engn, Smidowicza 69, PL-81127 Gdynia, Poland

来源：

JOURNAL OF MARINE SCIENCE AND ENGINEERING | 2022年 / 10卷 / 04期

关键词：

Strouhal number; biomimetic folding fins; image processing; fluid-structure interaction; EFFICIENCY; ANIMALS; SYSTEM; MODEL; DRAG;

D O I：

10.3390/jmse10040484

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

The aim of the paper is to present the parameters of new biomimetic folding fins measured using image processing. Tests were carried out for different types of folding biomimetic fins and compared to the most popular fins on the market. A noninvasive image processing method was used to estimate divers' velocities in the vertical and horizontal directions and the frequency and the amplitude of the fin trailing edge, and as a result, the Strouhal number was calculated. These tests are a continuation of studies conducted in a water tunnel, where fin efficiency was measured as the ratio of generated thrust to electrical energy consumption, taking into account the mechanical efficiency of the leg manipulator as well as the water velocity. The Strouhal number helped us to analyse the parameters of the fin-diver-water system taking into account the properties of the fins, in particular the newly designed biomimetic folding fins.

引用

页数：13

共 32 条

[1]

Arellano R, 2002, P 20 INT S BIOM SPOR

[2] Effects of Currents on Human Freestyle and Breaststroke Swimming Analyzed by a Rigid-Body Dynamic Model [J].

Bao, Yinxiang ;

Fang, Hongbin ;

Xu, Jian .

MACHINES, 2022, 10 (01)

[3] The principle of similitude. [J].

Buckingham, E .

NATURE, 1916, 96 :396-397

[4] Optimal Strouhal number for swimming animals [J].

Eloy, Christophe .

JOURNAL OF FLUIDS AND STRUCTURES, 2012, 30 :205-218

[5] Efficient cruising for swimming and flying animals is dictated by fluid drag [J].

Floryan, Daniel ;

Van Buren, Tyler ;

Smits, Alexander J. .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2018, 115 (32) :8116-8118

[6]

Gonzales RC, 2004, Digital Image Processing Using MATLAB

[7]

Groh B.H., 2015, 2015 IEEE 12 INT C W, P1, DOI [10.1109/BSN.2015.7299376, DOI 10.1109/BSN.2015.7299376]

[8]

Grzadziela A., STAND FIN DRIVES ENE

[9] Method for assessing the dynamics and efficiency of diving fins [J].

Grzadziela, Andrzej ;

Szymak, Piotr ;

Piskur, Pawel .

ACTA OF BIOENGINEERING AND BIOMECHANICS, 2020, 22 (04) :139-150

[10] How are Strouhal number, drag, and efficiency adjusted in high level underwater monofin-swimming? [J].

Guillaume, Nicolas ;

Benoit, Bideau ;

Briac, Colobert ;

Eric, Berton .

HUMAN MOVEMENT SCIENCE, 2007, 26 (03) :426-442

← 1 2 3 4 →