Gallery
Computation of the sppining koma.
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The koma is spinning at 1,000 RPM. Best CFD Graphics Award: 3rd Place in 25th CFD Symopsium, December 2011, Japan.
Computation of the aerodyanmics of locust flapping wings.
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The prescribed motion and deformation of the locust wings are based on digital data extracted from the videos of the locust in a wind tunel. (T*AFSM)
NREL 5MW offshore baseline wind turbine.
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A 61 m blade is attached to a hub with radius of 2 m, making the total roater radius 63 m. (T*AFSM)
Detailed fluid dynamics computation of a ringsail parachute for the Orion project.
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The ringsail parachute is a very complex geometry because it has several gaps and holes that contribute to geometric porosity. The geometric porosity affects aerodynamic performance including vertical descent speed and gliding characteristics of the parachute. This computation includes all gaps and holes to model the geometric porosity. (T*AFSM)
Flow visualization around a ringsail parachute using massless particles.
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FSI modeling of a ringsail parachute for the Orion project. This parachute is the original design and the performance is in good agreement with drop tests carried out by NASA. (T*AFSM)
FSI modeling of a carotid artery with an aneurysm and with the aneurysm removed.
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The artery shape is determined by locally varying fluid tractions, which are in turn determined by a blood circulation model of the downstream pressure. (T*AFSM)
FSI modeling of a cerebral artery with an aneurysm.
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The artery shape is determined by locally varying fluid tractions, which are in turn determined by a blood circulation model of the downstream pressure. (T*AFSM)
Flow visualization around a ringsail parachute using massless particles.
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This is a design study. Removing the fifth ring makes the parachute more stable. See more details T*AFSM.
FSI modeling of a middle cerebral artery with an aneurysm.
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The artery shape is determined by locally varying fluid tractions, which are in turn determined by a blood circulation model of the downstream pressure. See more details T*AFSM.
Wind blows a windsock. The half windsock is for visualization only.
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FSI modeling of a windsock. The main purpose of this computation is to demonstrate a technique for handling a kink propagating from upstream to downstream. See more details T*AFSM.
Isotropic homogeneous turbulent flow. (The anaglyph version needs red (left) and blue (right) glasses.)
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The incompressible flow computation was carried out using the conservative IDO method with 512 cores on TSUBAME. It is in excellent agreement with the result of a spectral method. The initial and comparison data was provided by Professor Tanahashi (Tokyo Institute of Technology). (NMRI)
Huge waves and a container ship (284 m long).
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Air, water and a 5500 twenty-foot equivalent units (TEU) container ship are calculated simultaneously using the Soroban CIP method. The Soroban grid, solution adaptive grid system, is able to capture the thin water surface around the ship. (NMRI)
Troubleshooting
Takizawa's Lab
