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Abstrak - MATTHEW HU
Terbatas  Irwan Sofiyan
» Gedung UPT Perpustakaan
Terbatas  Irwan Sofiyan
» Gedung UPT Perpustakaan
This research employs numerical fluid-structure interaction (FSI) modeling
using numerical commercial software to analyze the thrust performance of
caudal fins. The study begins with modeling and validating a 3D FSI model
against existing experimental data. Subsequently, an analysis is conducted to
determine the most suitable 2D plane model (plane strain or plane stress).
Parametric study are conducted by varying flapping frequency, freestream
velocity, and material stiffness. Results demonstrate successful validation of
the 3D FSI model against experimental data. The 2D plane strain model is
slightly favored for its computational efficiency and possesses better accuracy
compared to plane stress. Key conclusions highlight the dependence of net
thrust on flapping frequency relative to natural frequency, where the highest
net thrust generation are located in the region near the natural frequency of the
system, the influence of material properties on thrust location, and the impact
of freestream velocity, where an increase in freestream velocity will increase the
net thrust generation in stiffer materials, and decrease the thrust generation
in less stiff material with an addition of the shift of peak thrust location.