Swimming hydrodynamics: ten questions and the technical approaches needed to resolve them

@article{Lauder2011SwimmingHT,
  title={Swimming hydrodynamics: ten questions and the technical approaches needed to resolve them},
  author={George V. Lauder},
  journal={Experiments in Fluids},
  year={2011},
  volume={51},
  pages={23-35}
}
  • G. Lauder
  • Published 2011
  • Computer Science
  • Experiments in Fluids
Recent experimental and computational studies of swimming hydrodynamics have contributed significantly to our understanding of how animals swim, but much remains to be done. Ten questions are presented here as an avenue to discuss some of the arenas in which progress still is needed and as a means of considering the technical approaches to address these questions. 1. What is the three-dimensional structure of propulsive surfaces? 2. How do propulsive surfaces move in three dimensions? 3. What… Expand
Body dynamics and hydrodynamics of swimming fish larvae: a computational study
TLDR
This study quantifies the flow around a swimming zebrafish (Danio rerio) larva using morphological and kinematics data from actual fish larvae aged 3 and 5 days post fertilization as input for a computational model that predicted free-swimming dynamics from prescribed changes in body shape. Expand
Hydrodynamic Performance of an Undulatory Robot: Functional Roles of the Body and Caudal Fin Locomotion
TLDR
A biomimetic robotic fish that travel along a servo towing system is implemented, which can be regarded as “treadmill” of the model, and it is shown that the wake structure behind the robotic swimmer is more sensitive to the Strouhal number and caudal fin pitch angle. Expand
Volumetric analysis of fish swimming hydrodynamics using synthetic aperture particle image velocimetry
This thesis details the implementation of a three-dimensional PIV system to study the hydrodynamics of freely swimming Giant Danio (Danio aequipinnatus). Volumetric particle fields are reconstructedExpand
A numerical investigation of flow around octopus-like arms: near-wake vortex patterns and force development
TLDR
The primary aim was to study the hydrodynamic characteristics of such bio-inspired robotic models and to derive theHydrodynamic force coefficients as a concise description of the vortical flow effects of octopus locomotion and exploratory behaviors. Expand
A Forced Damped Oscillation Framework for Undulatory Swimming Provides New Insights into How Propulsion Arises in Active and Passive Swimming
TLDR
A forced damped oscillation framework is applied to a chain-link model for undulatory swimming to understand how forcing leads to deformation and movement and leads to a qualitative understanding of optimal deformation kinematics for fast swimming. Expand
Passing the Wake: Using Multiple Fins to Shape Forces for Swimming
TLDR
This investigation has revealed that forces produced by interacting fins are very different from the vector sum of forces from combinations of noninteracting fins, and that manipulating the phase and location of multiple interacting fins greatly affect the magnitude and shape of the produced propulsive forces. Expand
Quantitative Thrust Efficiency of a Self-Propulsive Robotic Fish: Experimental Method and Hydrodynamic Investigation
The robotic fish that utilize the body/caudal fin undulatory locomotion has long interested both biologists and engineers. Although a variety of free swimming robotic fish prototypes have alreadyExpand
Fish Locomotion: Biology and Robotics of Body and Fin-Based Movements
The study of fish locomotion provides a rich source of inspiration for the design of robotic devices. Fish exhibit an array of complex locomotor designs that involve both diversity of structures usedExpand
Stability versus Maneuvering: Challenges for Stability during Swimming by Fishes.
TLDR
It is postulate that control of the angle of orientation, θ, of the trailing edge is especially important in the evolution and lifestyles of fishes, but studies are few. Expand
Fish-like aquatic propulsion studied using a pneumatically-actuated soft-robotic model.
TLDR
It is shown that both stiffness and frequency substantially affect swimming kinematics, and that there are complex interactive effects of these two parameters on thrust. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 116 REFERENCES
Fish biorobotics: kinematics and hydrodynamics of self-propulsion
TLDR
This paper discusses, using aquatic propulsion in fishes as a focal example, how using robotic models can lead to new insights in the study of aquatic propulsion, and uses two examples: pectoral fin function, and hydrodynamic interactions between dorsal and caudal fins. Expand
Review of Hydrodynamic Scaling Laws in Aquatic Locomotion and Fishlike Swimming
We consider observations and data from live fish and cetaceans, as well as data from engineered flapping foils and fishlike robots, and compare them against fluid mechanics based scaling laws. TheseExpand
Hydrodynamics of Undulatory Propulsion
TLDR
This chapter focuses on recent experimental hydrodynamic data on undulatory locomotion in fishes, and provides a general description of the major theoretical model of undulatory propulsion, and represents a significant new arena of investigation. Expand
Locomotion with flexible propulsors: I. Experimental analysis of pectoral fin swimming in sunfish.
TLDR
The research program is summarized with the goal of producing a comprehensive data set for each of the five components noted above through a study of pectoral fin locomotion in one species of fish: the bluegill sunfish Lepomis macrochirus. Expand
The three-dimensional hydrodynamics of tadpole locomotion.
TLDR
This study analyzes tadpole propulsion using a three-dimensional (3D) computational fluid dynamic (CFD) model of undulatory locomotion that simulates viscous and unsteady flow around an oscillating body of arbitrary 3D geometry and demonstrates the feasibility of using 3D CFD methods to model the locomotion of other undulatory organisms. Expand
Locomotor forces on a swimming fish: three-dimensional vortex wake dynamics quantified using digital particle image velocimetry.
  • Drucker, Lauder
  • Physics, Medicine
  • The Journal of experimental biology
  • 1999
TLDR
The observed force balance indicates that DPIV can be used to measure accurately large-scale vorticity in the wake of swimming fishes and is therefore a valuable means of studying unsteady flows produced by animals moving through fluids. Expand
The hydrodynamics of eel swimming
TLDR
The hydrodynamics of American eels swimming steadily at 1.4 L s-1 are examined and it is inferred that the lack of downstream flow results from a spatial and temporal balance of momentum removal and thrust generated along the body, due to the relatively uniform shape of eels. Expand
Near-body flow dynamics in swimming fish
TLDR
The fish benefits from smooth near-body flow patterns and the generation of controlled body-bound vorticity, which is propagated towards the tail, shed prior to the peduncle region and then manipulated by the caudal fin to form large-scale vortical structures with minimum wasted energy. Expand
Escaping Flatland: three-dimensional kinematics and hydrodynamics of median fins in fishes
TLDR
Data on the kinematics and hydrodynamics of the dorsal fin, the anal fin and the caudal fin during steady swimming and maneuvering in brook trout, Salvelinus fontinalis, bluegill sunfish, Lepomis macrochirus, and yellow perch, Perca flavescens are presented. Expand
The `upstream wake' of swimming and flying animals and its correlation with propulsive efficiency
TLDR
The existence of upstream fluid structures even though the upstream flow is quiescent or possesses a uniform incoming velocity is demonstrated and it is proposed that the unsteady mass flow rate defined by the downstream fluid structures can be used as a metric to measure and objectively compare the efficiency of locomotion in water and air. Expand
...
1
2
3
4
5
...