SIMULASI INTERAKSI FLUIDA DAN STRUKTUR SAYAP BURUNG KETIKA TERBANG MENGEPAK
Flapping of bird wings produce lift and thrust simultaneously. This phenomenon inspired us to create a thrust produced flapping wings machine. Flapping motion of a bird wing is a complex case in aerodynamics involving fluid structure interaction. Thrust generatied by plunging wing can be assesse...
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| Format: | Theses |
| Language: | Indonesia |
| Subjects: | |
| Online Access: | https://digilib.itb.ac.id/gdl/view/41435 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Flapping of bird wings produce lift and thrust simultaneously. This
phenomenon inspired us to create a thrust produced flapping wings machine.
Flapping motion of a bird wing is a complex case in aerodynamics involving
fluid structure interaction. Thrust generatied by plunging wing can be
assessed by a computational method which solving the interaction of fluid
motion and structure. Bird wings modeled as a flat plate plugged vertically
with hinge and clamp condition at the leading edge. During the downstroke
airflow is pulled by the wing motion until at the end and after a while during
the upstroke it is pushed back due to the wing structure flexibility producing
maximum thrust and vice versa. As a result, two peak of thrust are generated
in each cycle. Resulted thrust is influenced by frequency of the plunging
motion. Maximum thrust increases with increasing frequency of plunging
until reaching the given value of the frequency. |
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