Flapping dynamics of a flexible propulsor near ground

The flapping motion of a flexible propulsor near the ground was simulated using the immersed boundary method. The hydrodynamic benefits of the propulsor near the ground were explored by varying the heaving frequency (St) of the leading edge of the flexible propulsor. Propulsion near the ground had s...

Full description

Saved in:
Bibliographic Details
Published in:Acta mechanica Sinica 2016-12, Vol.32 (6), p.991-1000
Main Authors: Ryu, Jaeha, Park, Sung Goon, Kim, Boyoung, Sung, Hyung Jin
Format: Article
Language:English
Subjects:
Amplitudes
Boundaries
boundarymethod
Modeanalysis
Classical and Continuum Physics
Computational Intelligence
Engineering
Engineering Fluid Dynamics
Flapping
Flexiblepropulsor
Groundeffect
Immersed
Fluid dynamics
Grounds
Heaving
Kinematics
Propulsion
Research Paper
Simulation
Theoretical and Applied Mechanics
Thrust
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The flapping motion of a flexible propulsor near the ground was simulated using the immersed boundary method. The hydrodynamic benefits of the propulsor near the ground were explored by varying the heaving frequency (St) of the leading edge of the flexible propulsor. Propulsion near the ground had some advantages in generating thrust and propelling faster than propulsion away from the ground. The mode analysis and flapping amplitude along the Lagrangian coordinate were examined to analyze the kinematics as a function of the ground proximity (d) and St.The trailing edge amplitude (atail) and the net thrust (Fx ) were influenced by St of the flexible propulsor. The vortical structures in the wake were analyzed for different flapping conditions.
ISSN:0567-7718
1614-3116
DOI:10.1007/s10409-016-0571-5