Research Topics



Researches on Engine Noise Generation Mechanism
- Experiments and simulation using EXCITE PU (AVL) on vibration energy decay
- Effects of noise cancelling by
two-stage combustion and resonance-frequency shift on noise generation from diesel engines
- Time-frequency analysis of PCCI diesel engine
- Effect of hydrogen addition on diesel-engine noise


Researches on Flow-Induced Noise from a Muffler
- Whistle noise generation from perforated pipe
- Radiated noise from muffler surface


Fundamental Researches on Spray Combustion using microgravity environment
- Microgravity experiments on flame spread over randomly distribute droplet cloud  aboard Kibo on International Space Station (ISS)
-
Microgravity experiments on flame spread over droplet-cloud element using a drop facility
- Percolation-model development based on microgravity experiments



 
Researches on Liquid Pool Combustion
- PIV measurement of gas and liquid flows in pool combustion


Fundamental Researches on Combustion under Engine-like Conditions
- Flame speed measurement at high pressures and high temperatures under engine-like conditions
- Knock generation mechanism


Researches on Laser Ignition
- Laser ignition of fuel spray/air mixture
- Plasma generation through Laser-induced breakdown  in fuel spray


Researches on Micro-combustor
- Micro-combustion at high pressures
- Micro-combustor with electrospray
- Micro-combustion in narrow tube


Researches on Liquid Atomization
- Liquid atomization in swirl injector under aero-engine relight condition
- Effects of liquid viscosity and swirl flow on atomization


Fundamental Researches on Turbulent Spray Combustion
- Premixed-spray jet combustion
- Spray Combustion in a Counterflow
- Burning Mechanism and Microexplosion of Binary Fuel Droplets


Researches on New Concept Diesel Engine and Gas Turbine

- Combustion and exhaust emission of PCCI diesel engine
-
Combustion and exhaust emission of hydrogen-assisted diesel engine
- Flow field and spray measurement for LPP gas turbine injector


Researches on Fire Extinguishment by Water Mist
- Extinguishment of  spray flame by water mist
-
Extinguishment of  diffusion flame by water mist



Analysis of Engine Noise


Droplet-cloud combustion
in microgravity


Combustion under engine-like condition


Laser ignition


Micro-combustor


Liquid atomization in gas turbine injector


Fundamental research on turbulent spray combustion


Laser diagnostics for flow field



Launching of a Model Rocket
Theme integrated in a Curriculum of Dept. Mech. Eng.

- Design, Construction and Launching of Model Rockets (2000 - )


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