Research Experience

 

  • Research Scientist, Combustion Research and Flow Technology, Inc., United States   03/2015 – Present
  • Post-Doctoral Research Associate, College of Engineering/Department of Mathematics, Florida State University, United States   12/2007 – 02/2015
  •  Post-Doctoral Research Associate, Department of Mathematics, Florida State University, United States 05/2006 – 04/2007
  • Research Assistant, Center for Environmental Noise and Vibration Research (CENVR), Seoul National University, South Korea 03/2001 – 02/2006
  • Assistant, School of Mechanical and Aerospace Engineering, Seoul National University, South Korea 03/2005 – 02/2006
  • Research Assistant, Institute of Advanced Machinery and Design, Seoul National University, South Korea 09/2003 – 12/2003

 

Teaching Experience

 

  • Instructor (Course: Analysis in Mechanical Engineering II), College of Mechanical Engineering, Florida State/Florida A&M University, USA 01/2013 – 04/2013
  • Instructor (Course: Analysis in Mechanical Engineering II), College of Mechanical Engineering, Florida State/Florida A&M University, USA 01/2012 – 04/2012
  • Instructor (Course: Analysis in Mechanical Engineering I), College of Mechanical Engineering, Florida State/Florida A&M University, USA 08/2011 – 12/2011
Research Interests

 

    I have a variety of research interests that have the potential for publication and grant funding.

 

     Primarily, an important stream of my research is to understand liquid crystal elastomer/networks applicable to micro-propulsion systems and bio-medical actuator. It also requires to solve and to analyze fluid-structural interaction problems incorporating adaptive smart materials and structures. Because this is a relatively immature field, there exist lots of academic research topics and industrial application in future. Besides experimental study, numerical simulations of this adaptive smart material can be extremely valuable both in terms of providing a research tool and as an efficient design and optimization tool. Numerical modeling also allows visualization of complex flow phenomena that may not be easily obtained experimentally. Recently, I am involved in the project dealing with photo-responsive polymers, which has applications to micro-propulsion systems for insect-size aircraft and micro/nano-scale actuators and sensors. One paper was already submitted for the publication to the Journal of Fluids and Structures and recent works will be submitted for Journal publication to the International Journal of Mechanical Sciences and the Journal of Applied Physics in the coming months.

    

Another important stream of my research is to develop the high-leverage, high-accurate flow and noise prediction tools and technologies essential for an environmentally compatible and economically viable commercial transport and mechanical/aerospace facilities. In order to understand multi-scale flow physics, high-order accurate LES model should be developed and applied for the study about some important aerodynamic and aeroacoustic problems, for example, jet noise, wind turbine, aircraft wing, etc. It needs high fidelity numerical simulation, in particular, in areas of multi-scale and multi-physics problems in a solid and a structure, aerodynamics and aeroacoustics, and their industrial application. So far, my research focused on the fundamentals of fluid mechanics/aerodynamics (in particular, aeroacoustics), mathematical modeling and computational tool development. I already published some papers on jet noise prediction, modeling of acoustic impedance, impulsive noise prediction, LES computation using adaptive mesh refinement for the computation of turbulent flows, and so on. Recently I am developing the discontinuous spectral element method using LES numerical technique on unstructured grids to analyze fluid-structure interaction in micro-scale flapping elliptic wings.