The biological leaflet valve is a structure found in blood vessels and the cardiac system, designed to maintain a unidirectional flow within the vessels. Two filaments inspired by the biological leaflet are installed inside the channel, and behavior of two filaments is explored by using immersed boundary method. It is observed that the filaments serve as a valve, maintaining the unidirectional flow inside the channel depending on the length and the initial inclined angle of the filaments. The behavior of the filaments is classified into three modes based on the flow characteristics around the filaments. The pressure and vorticity fields in the vicinity of the filaments are examined to investigate the influence of the surrounding flow on the behavior of filaments. The present study reveals the time sensitivity of valve response, the power consumption, and hydrodynamic efficiency ( ) of the filament valve, noting that the response speed of the filament valve can vary up to 2.5 times depending on and . The dynamic behavior of the filament valve is analyzed with respect to changes in the properties of the filaments, observing a monotonic decrease in hydrodynamic efficiency with an increase in the bending rigidity of the filaments. As a result, the present study will be employed as a cornerstone in the development of a mechanical system that emulate biological structures through biomimetics.
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March 2024
Research Article|
March 08 2024
Fluid–structure interaction for mechanical filament valve mimicking a biological leaflet valve
Jongmin Yang (양종민)
Jongmin Yang (양종민)
a)
(Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing)
Department of Mechanical System Engineering, Jeju National University
, 102 Jejudaehak-ro, Jeju-si, Jeju-do 63243, South Korea
and Major of Mechanical Engineering, Faculty of Applied Energy System, Jeju National University
, 102 Jejudaehak-ro, Jeju-si, Jeju-do 63243, South Korea
a)Author to whom correspondence should be addressed: [email protected]
Search for other works by this author on:
a)Author to whom correspondence should be addressed: [email protected]
Physics of Fluids 36, 031904 (2024)
Article history
Received:
January 09 2024
Accepted:
February 14 2024
Citation
Jongmin Yang; Fluid–structure interaction for mechanical filament valve mimicking a biological leaflet valve. Physics of Fluids 1 March 2024; 36 (3): 031904. https://doi.org/10.1063/5.0196671
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Referee acknowledgment for 2024
Alan Jeffrey Giacomin
On Oreology, the fracture and flow of “milk's favorite cookie®”
Crystal E. Owens, Max R. Fan (范瑞), et al.
Chinese Academy of Science Journal Ranking System (2015–2023)
Cruz Y. Li (李雨桐), 李雨桐, et al.
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