The Dynamic Behavior of Opossum Shrimps

Sudo, Seiichi; Hoshika, Kyohei; Yano, Tetsuya; Shimazaki, Yoshiaki

doi:10.5226/jabmech.1.80

Cited by 5 publications

(5 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The significance of inspiration from nature for technical solutions has been regarded as biomimetics or bionics. Therefore, extensive investigations on the movements of many insects have been conducted by authors [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Aspects in the Relation between Locomotive Organs and Behavior of Beach Flea

Amano

Sudo

2013

J. Abmech

Self Cite

View full text Add to dashboard Cite

An experimental study is presented outlining the mechanical aspects of biological locomotion in beach fleas. Two basic types of dynamic behavior of beach fleas were examined, and their locomotive organs were observed microscopically. The jumping and swimming of beach fleas were analyzed by the high-speed video camera system. The structural properties of swimming and leaping organs were also studied. In the experiment for the jumping analysis, the relation between the surface roughness of ground and the horizontal jump distance were examined. Mechanical aspects in the relation between locomotive organs and behavior of beach flea were considered.

show abstract

Section: Introductionmentioning

confidence: 99%

Mechanical Aspects in the Relation between Locomotive Organs and Behavior of Beach Flea

Amano

Sudo

2013

J. Abmech

Self Cite

View full text Add to dashboard Cite

show abstract

“…where λ c is the wavelength of capillary wave, σ is the surface tension, ρis the density of liquid, and f c is the frequency of capillary wave. Generally, since the dominant frequency of capillary waves is the first subharmonic of the driving frequency f 0 [4,6,7], the wavelength can be calculated as λ c =5.67×10 -3 mm. However, the wavelength is on the order of the IDT pitch 2l p ≈1mm in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…The use of SAW (surface acoustic wave) atomization to generate aerosols was investigated for the miniature inhalation therapy platform [5]. The dynamic behavior of the water droplet subject to ultrasonic vibration using SAW device was investigated by the authors [6]. However, details of capillary surface waves and atomization process of a water droplet are unknown, and there still remains a wide unexplored domain.…”

Section: Introductionmentioning

confidence: 99%

Dynamics of a Water Droplet Subjected to Forced Vibration by Surface Acoustic Wave Device

Sudo

Kuwano

2018

MSF

View full text Add to dashboard Cite

The interfacial dynamics of a water droplet subjected to SAW (surface acoustic wave) was investigated using a high-speed video camera analysis system. The SAW device was fabricated to generate high frequency vibration for the droplet excitation. The water droplet showed bursting into a fine spray of smaller droplets and ultra-fine mist at the higher applied voltage to the SAW device. The appearance of droplet interface varied with elapsed time of surface acoustic wave excitation. At the initial stage after SAW excitation, capillary surface waves were observed on the droplet interface. Subsequently, surface disintegration due to fine spray and mist ejection was observed. The details of surface response of water droplet on the SAW device were revealed experimentally.

show abstract

“…This phenomenon of a boundary layer around an animal as it performs the escape response also has not been reported for any other hydrodynamic study of this maneuver in other crustaceans. One reason for this may be that many hydrodynamics studies on live aquatic animals are performed on tethered animals 6 , 46 or do not include flow measurements if the animals are free swimming 1 , 7 , 36 , 47 . A prominent boundary layer has only been reported for smaller mesozooplankton, such as copepods, which perform robust high velocity maneuvers in highly viscous fluid environments.…”

Section: Discussionmentioning

confidence: 99%

Hydrodynamics of the fast-start caridoid escape response in Antarctic krill, Euphausia superba

Connor

Webster

2023

Sci Rep

View full text Add to dashboard Cite

Krill are shrimp-like crustaceans with a high degree of mobility and variety of documented swimming behaviors. The caridoid escape response, a fast-start mechanism unique to crustaceans, occurs when the animal performs a series of rapid abdominal flexions and tail flipping that results in powerful backward strokes. The current results quantify the animal kinematics and three-dimensional flow field around a free-swimming Euphausia superba as it performs the caridoid escape maneuver. The specimen performs a single abdominal flexion-tail flip combination that leads to an acceleration over a 42 ms interval allowing it to reach a maximum speed of 57.0 cm/s (17.3 body lengths/s). The krill’s tail flipping during the abdominal closure is a significant contributor to the thrust generation during the maneuver. The krill sheds a complex chain of vortex rings in its wake due to the viscous flow effects while the organism accelerates. The vortex ring structure reveals a strong suction flow in the wake, which suggests that the pressure distribution and form drag play a role in the force balance for this maneuver. Antarctic krill typically swim in a low to intermediate Reynolds number (Re) regime where viscous forces are significant, but as shown by this analysis, its high maneuverability allows it to quickly change its body angle and swimming speed.

show abstract

The Dynamic Behavior of Opossum Shrimps

Cited by 5 publications

References 7 publications

Mechanical Aspects in the Relation between Locomotive Organs and Behavior of Beach Flea

Mechanical Aspects in the Relation between Locomotive Organs and Behavior of Beach Flea

Dynamics of a Water Droplet Subjected to Forced Vibration by Surface Acoustic Wave Device

Hydrodynamics of the fast-start caridoid escape response in Antarctic krill, Euphausia superba

Contact Info

Product

Resources

About