Turbomachinery
The turbomachinery systems include the pump, turbine, compressor, turbo-expander, and so on. The turbomachinery system consists of these various mechanical parts. We can find turbomachinery everywhere, and turbomachinery research on all these parts is critical for its reliable operation and preventing economic loss.
The suitable turbomachinery design and analysis are considered core technologies in cutting-edge mechanical systems. For instance, the SMR (Smaller Modular Reactor) circulating pump's bearing will be lubricated by water or molten salt because conventional oil lubrication requires additional utilities and contaminates the primary coolant. Also, SCO2 power systems employ their working fluid as the lubricant without conventional lubrication systems. These facts imply the importance of turbomachinery design and analysis in future energy systems because their performance features will differ greatly from their counterpart.
In addition, multiple physics phenomena are related to each other when it comes to modeling the turbomachinery system, so a performance prediction model with more sophisticated accuracy should be developed through the research. Conclusively, turbomachinery research is very important for cutting-edge mechanical systems, and we will continue the research to develop a better theoretical model.
Research Interests in Turbomachinery Area
1D/3D Rotor Dynamics
Hydrodynamic Bearings
Magnetic/Ball Bearings
Impeller/Seal Rotordynamic Forces
SCO2 Lubricated Rotating Machinery