Faculty Highlights

Hyunsun Lee, Ph.D.

Experience

Assistant Professor, Department of Mathematics
Hawaii Pacific University Fall 2012 - Present
Faculty Development Policies and Activities Committee

Postdoctoral Research Associate, Department of Mathematics
Florida State University Winter 2009 - Spring 2012
Project supervisor: M. Yousuff Hussaini

Postdoctoral research associate, Center for Simulation of Advanced Rockets (CSAR) Computational Science and Engineering (CSE)
University of Illinois Urbana-Champaign Fall 2007 - Fall 2009
Project co-supervisors: Karel Matous, Thomas L. Jackson

Ph.D., Applied Mathematics and Statistics
State University of New York at Stony Brook Graduated: Aug 2007
Advisor: James Glimm
Thesis: Compressible multi-species multi-phase flow models and the validation of turbulent mixing simulations for Rayleigh-Taylor instability

M.S., Mathematics
Yonsei University, Seoul, Korea Graduated: Aug 2002
Advisor: Haseo Ki
Thesis: Notes on the approximations of the Riemann Zeta Function

B.S., Mathematics
Yonsei University, Seoul, Korea Graduated: Feb 2000

Research Experience

Winter 2009 - Present

  • Identifying jet noise source of Lighthill’s theory using simulation data of jet flows
  • Computing overall material property of heterogeneous composites and its applications on liquid crystal elastomers (LCEs)

Fall 2007 - Fall 2009

  • Computing bounds on thermo-mechanical properties of heterogeneous material using extended Hashin-Shtrikman-Willis variational principle with third-order statistics
  • Developing and implementing numerical integration on adaptive sparse grid using multivariate quadrature in the spherical coordinates in parallel
  • Improving statistical tools for material properties
  • Using micro computer tomography (micro-CT) and image processing software to produce tomographic data (supervising an undergraduate student)

Fall 2002 - Summer 2007

  • Implementing, simulating, and analyzing turbulence flow with sub-grid model
  • Developing a multi-phase multi-species flow models for mass, momentum, and entropy with transportation terms, validating, and analyzing the models
  • Simulating Rayleigh-Taylor instabilities and collecting data from front tracking code
  • Parallel computing and large-scale scientific computing
  • Developing and simulating models for cell migration and forest flame motion

Spring 2000 - Spring 2002

  • Studying complex variables functions
  • Researching on the approximations of the Riemann Zeta function
Teaching Experience

Fall 2012 - Present
Real Analysis, Introductory Statistics (Hawaii Pacific University)

Spring 2012
Calculus I (Florida State University)

Spring 2008 - Summer 2008
Research supervisor: tomography and image processing (University of Illinois Urbana-Champaign)

Spring 2000 - Fall 2006 (Recitation)
Elements of Statistics, Calculus III, Calculus IV (Stony Brook University), Set Theory, Advanced Calculus (Yonsei University)

Technical Skills
  • Mathematics: Scientific/parallel computing, numerical analysis, algorithm development
  • Operating systems: UNIX, Window NT/2000/XP
  • Programming languages: C, Shell script
  • Software: MATLAB, Tecplot, LaTeX, MAPLE, SAS

Awards & Activities

Seminar talk in Fall Natural Science Seminar, Hawaii Pacific University (2012)

Contributed talk in 2012 Joint Mathematical Meeting, Boston (2012)

Seminar talk in Applied Mathematics and Statistics, Stony Brook University (2011)

Two contributed talks in 7th International Congress on Industrial and Applied Mathematics, Vancouver (ICIAM) (2011)

Seminar talk in World Class University (WCU), Yonsei University, Seoul, Korea (2011)

Seminar talk in Mathematics, Yonsei University, Seoul, Korea (2011)

Travel grant from Association for Women in Mathematics (AWM) and National Science Foundation (NSF) (2011)

Talk at 63rd Annual Meeting of the APS Division of Fluid Dynamics, California (2010)

Travel award from National Science Foundation (NSF) for NSF Workshop on Mathematical

Modeling and Computer Simulations for Soft Materials (2010)

Contributed talk at NSF Workshop on Mathematical Modeling and Computer Simulations for Soft Materials, Colorado (2010)

Invited seminar talk at Computational Science and Engineering in Yonsei University, Seoul, Korea (2010)

Contributed talk at the 10th US National Congress on Computational Mechanics, Ohio State University (2009)

Seminar talk at Computational Science and Engineering, University of Illinois, Urbana- Champaign (2008)

Seminar talk at Center for Simulation of Advanced Rocket (CSAR), University of Illinois, Urbana-Champaign (2008)

Contributed talk at Computational Science and Engineering (CSE07) held by Society for Industrial and Applied Mathematics, California (2007)

Travel award from SIAM for CSE07 (2007)

Seventh Workshop on the DOE about Advanced Computational Software (ACTS) Collection, California (2007)

Full-Tuition Scholarship (SUNY at Stony Brook, Sept. 2002 - Aug 2007)

Vice president of Korean Graduate Student Association in Stony Brook (2004)

Completion of Foreign Language Institute in Yonsei University, Seoul, Korea (1999)

Awards in undergraduate mathematical competitions (1998, 1999) held by Korean Mathematical Society (KMS)

Professional Organizations

  • American Mathematical Society (AMS)
  • Association for Women in Mathematics (AWM)
  • Society for Industrial and Applied Mathematics (SIAM)

Publications

Journal publications

Characterization of round and chevron jet nozzle configurations based on a causality method (Hyunsun Lee, Ali Uzun and Yousuff M. Hussaini, in preparation, 2012)

Identification of jet noise source based on high-fidelity numerical simulation of a round jet flow (Hyunsun Lee, Ali Uzun and Yousuff M. Hussaini, submitted to Journal of Sound and Vibration, 2012)

Computing overall elastic constants of polydisperse particulate composites from micro- tomographic data (Hyunsun Lee, Andrew S. Gillman and Karel Matous, Journal of the Mechanics and Physics of Solids, 2011)

Three-dimensional reconstruction of statistically optimal unit cells of polydisperse particulate composites from microtomography (Hyunsun Lee, Mark Brandyberry, Andrew Tudor and Karel Matous, Physical Review E, 2009)

On validation of turbulent mixing simulations for Rayleigh-Taylor instability (Hyunsun Lee, Hyeonseong Jin, Yan Yu and James Glimm, Physics of Fluids, volume 20, issue 1, 2008)

Multi scale models for fluid mixing (H. Lim, Y. Yu, H. Jin, D. Kim, H. Lee, J.Glimm, X.-L. Li and D. H. Sharp, special issue of Computer Methods in Applied Mechanics and Engineering on stochastic modeling of multiscale/multiphysics problems, 197, pp.3435-3444, 2008)

Compressible multi-species multi-phase flow models (W. Bo, H. Jin, D. Kim, X. Liu, H. Lee, N. Pestieau, Y. Yu, J. Glimm and J. W. Grove, Computers and Mathematics with Applications, volume 56, issue 5, pp. 1291-1302, 2008)

Recent progress in the stochastic analysis of turbulent mixing (W. Bo, B. Cheng, J. Du, B. Fix, E George, J. Glimm, J. W. Grove, X. Jia, H. Jin, H. Lee, Y. Li, X. Li, X. Liu, D. H. Sharp, L. Wu and Y. Yu, Contemporary Mathematics, 429, pp. 33-44, 2007)

Conference or seminar publications

Research on estimating the overall behavior of composite materials based on classical principle and modern numerical integration (Hyunsun Lee, Kareal Matous, Sep 6, 2012)

Identifying jet noise source based on high-fidelity numerical simulation of round and chevron jet flows (Hyunsun Lee, Ali Uzun and M. Yousuff Hussaini, Jan 4-Jan 7, 2012)

Identifying jet noise source using high-fidelity numerical simulation of a round jet (Hyunsun Lee, Ali Uzun and M. Yousuff Hussaini, 7th International Congress on Industrial and Applied Mathematics, July 18-July 22, 2011)

Computing overal mechanical property of heterogeneous particulate composites and its application using tomographic data (Hyunsun Lee and Karel Matous, 7th International Congress on Industrial and Applied Mathematics, July 18-July 22, 2011)

Identifying Lighthill source term with large-eddy simulation of subsonic turbulent jet (Hyunsun Lee, Ali Uzun and Yousuff M. Hussaini, 63rd Annual Meeting of the APS Division of Fluid Dynamics, November 21-23, 2010)

Computing mechanical properties from micro-tomographic data of heterogeneous particulate composites by extended Hashin-Shtrikman-Willis variational principle (Hyunsun Lee and Karel Matous, NSF Workshop on Mathematical Modeling and Computer Simulations for Soft Materials, September 13-17, 2010)

Computing mechanical properties from microtomograpic data by extended Hashin-Shtrikman- Willis variational principle (Karel Matous and Hyunsun Lee, 16th US National Congress of Theoretical and Applied Mechanics, June 27-July 2, 2010)

Computing bounds on thermo-mechanical properties of heterogeneous material using extended Hashin-Shtrikman variational principles with third-order statistics (Hyunsun Lee and Karel Matous, 10th US National Congress on Computational Mechanics, July 16-19, 2009)

Three-dimensional tomographic characterization of heterogeneous solid propellants using n-point probability functions (Mark Brandyberry, Andrew Tudor, Hyunsun Lee and Karel Matous, 10th US National Congress on Computational Mechanics, July 16-19, 2009)

Experimental and numerical modeling of solid propellants (H. Lee, B. Collins, K. Matous, ASME International Mechanical Engineering Congress and Exposition, Oct 31-Nov 6, 2008)

Experimental and numerical modeling of solid propellants using microtomography (K. Matous, F. Maggi, B. Collins, H. Lee and T.L. Jackson, 8th World Congress on Computational Mechanics (WCCM8), 5th European Congress on Computational Methods in Applied Sciences and Engineering (ECCMAS 2008), June 30-July 5, 2008)

Compressible multi-species multi-phase flow models (Hyunsun Lee, Computational Science and Engineering (CSE07), Feb 19-23, 2007)

Thesis publications

Compressible multi-species multi-phase flow models and the validation of turbulent mixing simulations for Rayleigh-Taylor instability (Hyunsun Lee, PhD thesis, 2007)

Notes on the approximations of the Riemann Zeta Function (Hyunsun Lee, Master thesis, 2002)

Grants and Contracts

Faculty development travel grant ($1,921), Hawaii Pacific University, PI: H. Lee (2013)

Travel grant ($3,000), Association for Women in Mathematics and National Science Foundation, PI: H. Lee (2011)