Postdoctoral Researcher:

Dr. Joo Sung Lee

 

Ph.D., Department of Chemical and Biological Engineering, Korea University, 2005.
M.S., Department of Chemical and Biological Engineering, Korea University, 2001.
B.S., Department of Chemical Engineering, Korea University, 1999 (Early graduation).

Office: B93 Tan Hall
Phone: (510) 642-3699
Personal hompage: http://grtrkr.korea.ac.kr/~jslee96
Email: jslee96@berkeley.edu

Research interests:

Microsystems
   Microfluidic four-roll mill device
   Flow instabilities & drop formation in hydrofocusing flow
   Dynamics of DNA molecules in mixed flow
Stability analysis of rheological processes
   Linear and nonlinear stability analyses
   Stabilizing strategies for polymer processes
Computational fluid dynamics
   Transient solutions for the dynamic systems of viscoelastic fluids
   Finite element method to solve the hyperbolic equations
   Micro-macro simulations 

Publications:

  1. Lee, J. S., H. W. Jung and J. C. Hyun, "Melt Spinning Dynamics of Phan-Thien Tanner Fluids," Korea-Australia Rheol. J., 12(2), 119 (2000).
  2. Lee, J. S., H. W. Jung, S. H. Kim and J. C. Hyun, "Effect of Fluid Viscoelasticity on the Draw Resonance Dynamics of Melt Spinning," J. Non-Newtonian Fluid Mech., 99, 159 (2001).
  3. Lee, J. S., H. W. Jung, K.-Y. Lee and J. C. Hyun, "Kinematic Waves and Draw Resonance in Film Casting Process," J. Non-Newtonian Fluid Mech., 101, 43 (2001).
  4. Lee, J. S. and J. C. Hyun, "Nonlinear Dynamics and Stability of Film Casting Process," Korea-Australia Rheol. J., 13(4), 179 (2001).
  5. Jung, H. W., J. S. Lee and J. C. Hyun, "Sensitivity Analysis of Melt Spinning Process by Frequency Response," Korea-Australia Rheol. J., 14(2), 57 (2002).
  6. Song, H.-S., J. S. Lee and J. C. Hyun, "A Kinetic Model for Polystyrene (PS) Pyrolysis Reaction," Korean J. Chem. Eng., 19(6), 949 (2002).
  7. Lee, J. S., H. W. Jung and J. C. Hyun, "Frequency Response of Film Casting Process," Korea-Australia Rheol. J., 15(2), 91 (2003).
  8. Jung, H. W., J. S. Lee and J. C. Hyun, "Frequency Response for Stability and Sensitivity Analyses in Viscoelastic Spinning Process," Transport Phenomena, 17, 29 (2003).
  9. Jung H. W., J. S. Lee, L. E. Scriven and J. C. Hyun, "The Sensitivity and Stability of Spinning Process Using Frequency Response Method," Korean J. Chem. Eng., 21(1), 20 (2004).
  10. Lee, J. S., H. W. Jung and J. C. Hyun, "Stabilization of Film Casting by an Encapsulation Extrusion Method," J. Non-Newtonian Fluid Mech., 117, 109 (2004).
  11. Hyun, J. C., H. Kim, J. S. Lee, H.-S. Song and H. W. Jung, "Transient Solutions of the Film Blowing Dynamics," J. Non-Newtonian Fluid Mech., 121, 157 (2004).
  12. Jung, H. W., J. S. Lee, J. C. Hyun, S. J. Kim and L. E. Scriven, "Simplified Modeling of Slide-fed Curtain Coating Flow," Korea-Australia Rheol. J., 16, 227 (2004).
  13. Shin, D. M., J. S. Lee, H. W. Jung and J. C. Hyun, ¡°Analysis of the Effect of Flow-induced Crystallization on the Stability of Low-speed Spinning using the Linear Stability Method,¡± Korea-Australia Rheol. J., 17, 63 (2005).
  14. Lee, J. S., H. W. Jung, J. C. Hyun and L. E. Scriven, "A Simple Indicator of Draw Resonance Instability in Melt Spinning Process," AIChE J., 51, 2869 (2005).
  15. Lee, J. S., D. M. Shin, H. W. Jung and J. C. Hyun, "Transient Solutions of the Dynamics in Fiber Spinning Process Accompanied by Flow-induced Crystallization," J. Non-Newtonian Fluid Mech., 130, 110 (2005).
  16. Lee, J. S., D. M. Shin, H. W. Jung, J. C. Hyun and Y. U. Jeong, ¡°Frequency Response Method to Determine the Stability of the Viscoelastic Spinning Processes,¡± Nihon Reoroji Gakkaishi, 33, 213 (2005).
  17. Kim, J. M., J. S. Lee, H. W. Jung and J. C. Hyun, "Transient Solutions of the Dynamics of Film Casting Process Using a 2-D Viscoelastic Model," J. Non-Newtonian Fluid Mech., 132, 53 (2005).
  18. Lee, J. S., D. M. Shin, H.-S. Song, H. W. Jung and J. C. Hyun, "Existence of Optimal Cooling Conditions in the Film Blowing Process," J. Non-Newtonian Fluid Mech., in press (2006).
  19. Shin, D. M., J. S. Lee, H. W. Jung and J. C. Hyun, ¡°High-speed Fiber Spinning Process with Spinline Flow-induced Crystallization and Neck-like Deformation,¡± Rheol. Acta, in press (2006).
  20. Shin, D. M., J. S. Lee, H. W. Jung and J. C. Hyun, ¡°Multiplicity, Bifurcation, Stability and Hysteresis in Dynamic Solutions of Film Blowing Process," J. Rheol., submitted (2006).