Jet Vectoring
Actively controls the direction and turbulence of primary jet simultaneously by replacing the control port of the conventional flip-flop jet nozzle with speakers.
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doi.org/10.1299/jfst.2024jfst0023
Axial-flow Fan
Proposing new technology to control flow instability where disturbances with pressure fluctuations propagate in the circumferential direction when an obstacle is located at the intake side of an Axial-flow fan.
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doi.org/10.1115/1.4047535
Micro Mixer
Estimate the concentration fields in our micromixer using the visualization method.
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doi.org/10.1007/s12650-012-0126-1
Circulation Control Wing
Circulation control using synthetic jet tangentially generated from a slot on a Coanda surface. Specifically, the effect of the frequency and curvature on the flow was analyzed.
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doi.org/10.11159/htff23.183
Micro Air Vehicle
Examines the mechanism of thrust increase due to the ceiling effect in near-ceiling flight, which is one of the concerns for the practical application of multi-copters in indoor environm-ents. Proposing novel rotor with a pressure recovery hole as one of the passive control techniques.
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doi.org/10.1115/1.4063331
Oil film behavior around OCR
We demonstrated the pressure generation mechanism of oil under the oil ring by reproducing the flow field in the gap between the liner and piston skirt/underside oil ring using CFD.
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doi.org/10.4271/2019-01-2361
Slotted Return Vanes
Return vanes using jet/suction flow, which can actively respond to changes the flow angle and reduce the energy loss related to separation.
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doi.org/10.11159/htff23.177
MPI Hydrogen Engine
CFD analysis is performed on the optimum hydrogen jet structure and injection timing to improve the combustion performance of MPI hydrogen engines.
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doi.org/10.11351/jsaeronbun.55.1
doi.org/10.4271/2023-32-0037
Inlet Guide Vanes (IGVs)
IGVs are installed for upstream of a compressor to generate pre-swirling flow which reduces collision losses at the impeller. However, a flow instabilities are occurred downstream of the IGVs. To clarify the mechanism of generation of flow instabilities and suppression pressure fluctuation by conducting EFD & CFD.
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doi.org/10.1299/jfst.6.651