The Ground Effect in Anguilliform Swimming

Ogunka, Uchenna; Daghooghi, Mohsen; Akbarzadeh, Amir; Borazjani, Iman

doi:10.3390/biomimetics5010009

Cited by 17 publications

(5 citation statements)

References 41 publications

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“…Ground effects are likely important in other groups of benthic fishes (e.g., Webb 1981 ; Nowroozi et al. 2009 ; Ogunka et al. 2002, 2020 ), though their modes of swimming may have less in common with the crustacean caridoid response.…”

Section: Discussionmentioning

confidence: 99%

Substrate Interactions and Free-Swimming Dynamics in the Crayfish Escape Response

de Pablo,

Carleton,

Modarres-Sadeghi

et al. 2024

Integrative Organismal Biology

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The caridoid or “tail flip” escape behavior of decapod crustaceans is a model system in neurobiology, but many aspects of its biomechanics are not well understood. To understand how the freshwater virile crayfish Faxonius virilis interacts with the substrate during the tail flip, we studied tail-flip hydrodynamics and force generation for free-moving animals standing on substrate, as well as tethered animals held at different distances from the substrate. We found no significant differences in force generation when distance from substrate was varied. Particle image velocimetry (PIV) revealed that vortex formation was similar at all distances, but there were notable differences in interactions between shed vortices and substrate at different distances. Negative vorticity (clockwise flow of water) was observed in tethered animals interacting with the substrate but was largely absent in free-swimming animals. We found no evidence of ground effects enhancing tail flip performance in either tethered or free-swimming individuals, as peak force generation occurred before vortex shedding. This study contributes to our understanding of the crayfish escape response and highlights the need for more work that incorporates free-swimming animals and complex environments in the study of crustacean biomechanics.

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Section: Discussionmentioning

confidence: 99%

Substrate Interactions and Free-Swimming Dynamics in the Crayfish Escape Response

de Pablo,

Carleton,

Modarres-Sadeghi

et al. 2024

Integrative Organismal Biology

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“…In contrast, a few studies have adopted the large eddy simulation (LES) turbulent approach, which resolves large turbulence scales while modeling only the smaller ones. For example, Bottom et al [ 42 ] examined the hydrodynamics of stingrays, and Ogunka et al [ 43 ] investigated the ground effects on the swimming behavior of eel-like fish.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of Dimensionless Parameters in Carangiform Fish Swimming Hydrodynamics

Macías,

García-Ortiz,

Oliveira

et al. 2024

Biomimetics

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Research into how fish and other aquatic organisms propel themselves offers valuable natural references for enhancing technology related to underwater devices like vehicles, propellers, and biomimetic robotics. Additionally, such research provides insights into fish evolution and ecological dynamics. This work carried out a numerical investigation of the most relevant dimensionless parameters in a fish swimming environment (Reynolds Re, Strouhal St, and Slip numbers) to provide valuable knowledge in terms of biomechanics behavior. Thus, a three-dimensional numerical study of the fish-like lambari, a BCF swimmer with carangiform kinematics, was conducted using the URANS approach with the k-ω-SST transition turbulence closure model in the OpenFOAM software. In this study, we initially reported the equilibrium Strouhal number, which is represented by St∗, and its dependence on the Reynolds number, denoted as Re. This was performed following a power–law relationship of St∝Re(−α). We also conducted a comprehensive analysis of the hydrodynamic forces and the effect of body undulation in fish on the production of swimming drag and thrust. Additionally, we computed propulsive and quasi-propulsive efficiencies, as well as examined the influence of the Reynolds number and Slip number on fish performance. Finally, we performed a vortex dynamics analysis, in which different wake configurations were revealed under variations of the dimensionless parameters St, Re, and Slip. Furthermore, we explored the relationship between the generation of a leading-edge vortex via the caudal fin and the peak thrust production within the motion cycle.

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“…One fascinating area of study is focused on fishes. Researchers have analyzed and modeled the fins to investigate the high efficiency of motion of aquatic animals, enhancing the swimming capabilities of aquatic robots [12][13][14][15][16]. Additionally, an interesting field for innovative grippers is taking inspiration from some fishes possessing unique jaw mechanisms, such as the Moray eel's double jaw design [17], the upper jaw protrusion of Trachipterus altivelis [18], or the mouth opening phase of Clarias gariepinus [19].…”

Section: Introductionmentioning

confidence: 99%

A Mechanical Approach for Comparing Jaws in Fishes

Trotta,

Sandulli,

Cinquemani

2024

Biomimetics

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This paper aims to propose an quantitative engineering approach to study and compare the jaw mechanisms of different marine species, considering essential mechanical parameters generally used to evaluate the performance of industrial linkage mechanisms. By leveraging these parameters, the paper demonstrates how the species’ characteristics and behaviors align with the findings of biologists, enabling a meaningful comparison that was not previously possible. Seven fish species from various families are chosen to maintain a generic approach.

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The Ground Effect in Anguilliform Swimming

Cited by 17 publications

References 41 publications

Substrate Interactions and Free-Swimming Dynamics in the Crayfish Escape Response

Substrate Interactions and Free-Swimming Dynamics in the Crayfish Escape Response

Numerical Investigation of Dimensionless Parameters in Carangiform Fish Swimming Hydrodynamics

A Mechanical Approach for Comparing Jaws in Fishes

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