Simulation of an energy harvesting eel by the immersed boundary method = 가상 경계 방법을 이용한 에너지를 모으는 뱀장어의 수치해석

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 309
  • Download : 0
In the present study, we carry out numerical simulations of energy harvesting eel by using the immersed boundary method. The fluid motion is described by Eulerian variables defined on a fixed Cartesian mesh, while the filament motion is described by Lagrangian variables defined on a freely moving mesh. Eel is modeled by a flexible filament and is placed behind a circular cylinder. We perform systematic simulations in order to explore the effects of Reynolds number, filament mass, bending coefficient of filament, gap distance between cylinder and filament and filament length. The instantaneous filament motion is analyzed under different conditions and the surrounding vortical structures are identified. The flapping frequency of energy harvesting eel was compared with that in case of cylinder alone as well as filament alone. As increasing Reynolds number, we can see that the Strouhal number of cylinder alone is almost the same as that of energy harvesting eel, indicating that the filament flapping is passively induced by the vortical structures behind the cylinder. The bending energy is calculated for different conditions.
Advisors
Sung, Hyung-Jinresearcher성형진researcher
Description
한국과학기술원 : 기계공학전공,
Publisher
한국과학기술원
Issue Date
2009
Identifier
308547/325007  / 020073507
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 기계공학전공, 2009.2, [ vi, 45 p. ]

Keywords

energy harvesting eel; immersed boundary method; numerical simulation; 에너지를 모으는 뱀장어; 가상 경계 방법; 수치해석; energy harvesting eel; immersed boundary method; numerical simulation; 에너지를 모으는 뱀장어; 가상 경계 방법; 수치해석

URI
http://hdl.handle.net/10203/45713
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=308547&flag=dissertation
Appears in Collection
ME-Theses_Master(석사논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0