Numerical simulations of flow around intense appendage movements for aquatic propulsion

Research output: Contribution to conferencePaper

Abstract

The flow dynamics around elongated slender geometries undergoing time- dependent intense motions, which apply to cases of appendage-based aquatic locomotion, is of considerable importance for understanding the energetics of these motions and for exploiting energy-efficient strategies to apply in novel propulsion designs. The difficulty in simulating such flows lies in the solution accuracy. The use of fixed-grid methods has been the gold standard for such flows, in which a moving (immersed) boundary is defined on a stationary domain; thus, these methods are capable of handling arbitrarily large motions and deformations and allow effective transient solutions of complex fluid problems. Within the immersed-boundary framework, we propose implementations for medium and extreme motions, ensuring stability and accuracy of transient motion results. The movements investigated are based on kinematic models extracted both from available three-dimensional motion reconstruction data of animal swimming and the literature. This study includes a series of specific geometries and motions, which entail parametric studies of performance and propulsive efficiency.

Conference

Conference29th International Conference on Parallel Computational Fluid Dynamics
Abbreviated title29th ParCFD
CountryUnited Kingdom
CityGlasgow
Period15/05/1717/05/17

Fingerprint

Propulsion
Geometry
Computer simulation
Kinematics
Animals
Fluids
Swimming

Keywords

  • immersed boundary method
  • numerical simulations
  • aquatic locomotion

Cite this

Kazakidi, A. (2017). Numerical simulations of flow around intense appendage movements for aquatic propulsion. 1-2. Paper presented at 29th International Conference on Parallel Computational Fluid Dynamics, Glasgow, United Kingdom.
Kazakidi, Asimina. / Numerical simulations of flow around intense appendage movements for aquatic propulsion. Paper presented at 29th International Conference on Parallel Computational Fluid Dynamics, Glasgow, United Kingdom.2 p.
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abstract = "The flow dynamics around elongated slender geometries undergoing time- dependent intense motions, which apply to cases of appendage-based aquatic locomotion, is of considerable importance for understanding the energetics of these motions and for exploiting energy-efficient strategies to apply in novel propulsion designs. The difficulty in simulating such flows lies in the solution accuracy. The use of fixed-grid methods has been the gold standard for such flows, in which a moving (immersed) boundary is defined on a stationary domain; thus, these methods are capable of handling arbitrarily large motions and deformations and allow effective transient solutions of complex fluid problems. Within the immersed-boundary framework, we propose implementations for medium and extreme motions, ensuring stability and accuracy of transient motion results. The movements investigated are based on kinematic models extracted both from available three-dimensional motion reconstruction data of animal swimming and the literature. This study includes a series of specific geometries and motions, which entail parametric studies of performance and propulsive efficiency.",
keywords = "immersed boundary method, numerical simulations, aquatic locomotion",
author = "Asimina Kazakidi",
year = "2017",
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note = "29th International Conference on Parallel Computational Fluid Dynamics, 29th ParCFD ; Conference date: 15-05-2017 Through 17-05-2017",

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Kazakidi, A 2017, 'Numerical simulations of flow around intense appendage movements for aquatic propulsion' Paper presented at 29th International Conference on Parallel Computational Fluid Dynamics, Glasgow, United Kingdom, 15/05/17 - 17/05/17, pp. 1-2.

Numerical simulations of flow around intense appendage movements for aquatic propulsion. / Kazakidi, Asimina.

2017. 1-2 Paper presented at 29th International Conference on Parallel Computational Fluid Dynamics, Glasgow, United Kingdom.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Numerical simulations of flow around intense appendage movements for aquatic propulsion

AU - Kazakidi, Asimina

PY - 2017/5/15

Y1 - 2017/5/15

N2 - The flow dynamics around elongated slender geometries undergoing time- dependent intense motions, which apply to cases of appendage-based aquatic locomotion, is of considerable importance for understanding the energetics of these motions and for exploiting energy-efficient strategies to apply in novel propulsion designs. The difficulty in simulating such flows lies in the solution accuracy. The use of fixed-grid methods has been the gold standard for such flows, in which a moving (immersed) boundary is defined on a stationary domain; thus, these methods are capable of handling arbitrarily large motions and deformations and allow effective transient solutions of complex fluid problems. Within the immersed-boundary framework, we propose implementations for medium and extreme motions, ensuring stability and accuracy of transient motion results. The movements investigated are based on kinematic models extracted both from available three-dimensional motion reconstruction data of animal swimming and the literature. This study includes a series of specific geometries and motions, which entail parametric studies of performance and propulsive efficiency.

AB - The flow dynamics around elongated slender geometries undergoing time- dependent intense motions, which apply to cases of appendage-based aquatic locomotion, is of considerable importance for understanding the energetics of these motions and for exploiting energy-efficient strategies to apply in novel propulsion designs. The difficulty in simulating such flows lies in the solution accuracy. The use of fixed-grid methods has been the gold standard for such flows, in which a moving (immersed) boundary is defined on a stationary domain; thus, these methods are capable of handling arbitrarily large motions and deformations and allow effective transient solutions of complex fluid problems. Within the immersed-boundary framework, we propose implementations for medium and extreme motions, ensuring stability and accuracy of transient motion results. The movements investigated are based on kinematic models extracted both from available three-dimensional motion reconstruction data of animal swimming and the literature. This study includes a series of specific geometries and motions, which entail parametric studies of performance and propulsive efficiency.

KW - immersed boundary method

KW - numerical simulations

KW - aquatic locomotion

UR - https://www.strath.ac.uk/engineering/parcfd2017/

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Kazakidi A. Numerical simulations of flow around intense appendage movements for aquatic propulsion. 2017. Paper presented at 29th International Conference on Parallel Computational Fluid Dynamics, Glasgow, United Kingdom.