Tian-Jian Hsu (Tom)

   Assistant Professor

 

   365 Weil Hall (Room 580A)

   Civil and Coastal Engineering

   University of Florida,

   Gainesville, FL 32611

   Email: thsu@ufl.edu

 

 

Last revised: November 2007.

 

 

Ph.D.  Cornell University, Civil and Environmental Engineering, 2002.

M.S.   Cornell University, Civil and Environmental Engineering, 1999.

B.S.    National Taiwan University, Naval Architecture and Ocean Engineering, 1994.

 

My research interest is to understand the fundamental mechanisms of sediment transport processes for both noncohesive and cohesive sediments and their applications to morphodynamics in fluvial, estuarine and coastal environments. Sediment transport in general is a multi-phase fluid-particle system. We focus on fundamental mechanisms such as boundary layer turbulence, turbulence-sediment interaction, intergranular interaction (rheology), and floc dynamics. Through studying detailed sediment transport processes, we also emphasize their applications to morphodynamics. For example, we study wave, current and breaking-wave induced sediment transport at sandy beaches and their application to nearshore sandbar migration and longshore transport. We are also interested in understanding the processes controlling the fate of fine terrestrial sediment into the coastal ocean. Specifically, we study cohesive sediment deposition and resuspension in estuary, tidal flat and continental shelf.

 

 

Professional Experience

Publication

Current and Past Projects

Honors and Awards

 

Professional Experience:

Assistant Professor, University of Florida                                                               Jan. 2006 – Present

Civil and Coastal Engineering.

Adjunct Scientist, Woods Hole Oceanographic Institution.                                      May 2006 – Present

Applied Ocean Physics and Engineering.

Assistant Scientist, Woods Hole Oceanographic Institution.                                    Sep. 2004 – Dec. 2005

Applied Ocean Physics and Engineering.

Postdoctoral Scholar, Woods Hole Oceanographic Institution.                               Sep. 2003 – Aug. 2004

Applied Ocean Physics and Engineering.

Postdoctoral Fellow, University of Delaware.                                                         Sep. 2002 – Aug. 2003

Center for Applied Coastal Research, Civil and Environmental Engineering.

 

Research Interests:

Sediment transport, Environmental Fluid Mechanics, Coastal Engineering, Multi-phase and particle-laden flow.

 

Honors and Awards:

National Science Foundation Faculty Early Career Development (CAREER) Award, 2007.

Coastal Ocean Institute Postdoctoral Scholarship, Woods Hole Oceanographic Institution, 2003.

DeFrees Graduate Research Fellowship, Cornell University, 2001 – 2002.

Undergraduate Research Student Paper Award, National Institute of Engineer, Taiwan, 1994.

 

Publications

Refereed Publications:

Chang, K-A, Hsu, T-J, and Liu, P. L.-F. (2001) Vortex generation and evolution in water waves propagating over a submerged rectangular obstacle. Part I: Solitary waves, Coast. Eng., 44(1), 13-36.

 

Hsu, T-J, Sakakiyama, T. and Liu, P. L.-F., (2002) A numerical model for wave motions and turbulence flows in front of a composite breakwater, Coast. Eng., 46(1), 25-50.

 

Hsu, T-J, Jenkins, J.T. and Liu, P. L.-F, (2003) On two-phase sediment transport: dilute flow, J. Geophys. Res., 108(C3), 3057, doi:10.1029/2001JC001276,

 

Hsu, T.-J., Jenkins, J.T., and Liu, P. L.-F, (2004) On two-phase sediment transport: sheet flow of massive particles. Proc. Roy. Soc. Lond. (A), 460(2048), 2223-2250.

 

Hsu, T-J and Hanes, D.M., (2004) The effects of wave shape on sheet flow sediment transport, J. Geophys. Res., 109(C5), C05025, doi:10.1029/2003JC002075.

 

Hsu, T-J and Liu, P. L-F., (2004) Toward Modeling Turbulent Suspension of Sand in the Nearshore, J. Geophys. Res., 109(C6), C06018, doi:10.1029/2003JC002240.

 

Chang, K-A, Hsu, T-J, and Liu, P. L.-F., (2005) Vortex generation and evolution in water waves propagating over a submerged rectangular obstacle. Part II: Cnoidal waves, Coastal Engineering, 52(3), 257-283.

 

Amoudry, L., Hsu, T-J, and Liu, P. L.-F. (2005) Schmidt number and near-bed boundary condition effects on a two-phase dilute sediment transport model, J. Geophys. Res., 110(C9), C09003, doi:10.1029/2004JC002798.

 

Hsu, T.-J., Raubenheimer, B. (2006) A numerical and field study on inner-surf and swash sediment transport, Cont. Shelf Res., 26, 589-598.

 

Hsu, T.-J., Elgar, S. and Guza, R. T., (2006) Wave-induced sediment transport and onshore sandbar migration, Coast. Eng., 53, 817-824.

 

Hsu, T-J, Traykovski P. A., and Kineke, G. C., (2007) On modeling boundary layer and gravity driven fluid mud transport, J. Geophys. Res., 112, C04011, doi:10.1029/2006JC003719.

 

Hsu T.-J., Yu, X., Sand transport under nearshore wave and current and its implication to sandbar migration, Nonlinear Wave Dynamics, Selected paper of the symposium hold in honor of Prof. Philip L.-F. Liu’s 60th birthday, Editor: P. Lynett, to appear Feb 2008.

 

Amoudry, L., Hsu, T-J, and Liu, P. L.-F., Two-phase model for sand transport in sheet flow regime, J. Geophys. Res., accepted.

 

Son, M., and Hsu, T.-J. Flocculation model of cohesive sediment using variable fractal dimension, Environmental Fluid Mechanics, accepted. 

 

Kennedy, A. B., Slatton K. C., Hsu. T.-J., Starek, M., and Kampa, K, Hurricane-induced sandwave in the nearshore ocean, Marine Geology, accepted.

 

Refereed Proceedings and Abstracts:

Liu, P. L.-F., Hsu, T-J, Lin, P., Losada, I. J., Vidal, C. and Sakakiyama, T., The Cornell breaking wave and structure (COBRAS) model, Proceedings of the International Conference Coastal Structures'99, Santander, Spain. p169-174, 1999.

 

Hsu, T-J, Jenkins, J.T., Liu, P. L.-F., Modeling of Sediment Suspension--A Two-Phase Flow Approach, Eos Trans. AGU, 81 (48), Fall Meet. Suppl., Abstract OS61D-06, 2000.

 

Hsu, T-J, Sakakiyama, T., and Liu, P. L.-F. Numerical modeling of tsunami wave forces and overtopping on coastal structures, International Tsunami Symposium Proceeding, Session 7, No. 7-9. 2001.

 

Hsu, T-J, Jenkins, J.T., Liu, P. L.-F. Modeling of Sediment Transport--A Two-Phase Flow Approach, Proceedings of Coastal Dynamics ‘01, ASCE, p578-587, 2001.

 

Hsu, T-J, Jenkins, J.T., Liu, P. L.-F., Simulation of sediment suspension using two-phase approach, Proceedings of 4th International Symposium on Ocean Wave Measurement and Analysis, ASCE, p1386-1396, 2001.

 

Hsu, T-J, Jenkins, J.T., Liu, P. L.-F., (2002) "Sediment vertical flux in unsteady sheet flow", Eos Trans. AGU, 83 (47), Fall Meet. Suppl., Abstract OS72C-08, 2002.

 

Hsu, T-J, Jenkins, J.T., Liu, P. L.-F. Modeling sheet flow using two-phase flow approach, Coastal Sediments ‘03, ASCE, Clearwater beach, FL, 2003.

 

Hsu, T-J and Elgar S., A simple physical-based approach for nearshore sandbar migration, Eos Trans. AGU, 84 (52), Fall Meet. Suppl., Abstract OS31G-10, 2004.

 

Hanes, D. M. and Hsu, T-J, The effects of wave induced pressure gradients on sheet flow sediment transport, Eos Trans. AGU, 84 (52), Fall Meet. Suppl., Abstract OS31G-04, 2004.

 

Hsu, T-J, and Hanes, D. M., Toward improved sediment transport parameterization under nearshore waves using a two-phase sheet flow model, 29th International Conference on Coastal Engineering, Paper No. 44, Lisbon, Portugal, 2004.

 

Long, W., Hsu, T-J, and Kirby, J. T. (2005) Modeling cross-shore sediment transport processes with a time domain Boussinesq model, 29th International Conference on Coastal Engineering, ASCE. Vol. 2, 1874-1886.

 

Hsu, T-J and Raubenheimer, B., Sediment transport in the inner-surf and swash zones. Eos Trans. AGU, 85 (47) Fall Meet. Suppl., Abstract OS24A-04, 2005.

 

Hsu, T-J, Traykovski P. A., and Kineke, G. C. Modeling boundary layer and gravity-driven fluid mud transport, Eos Trans. AGU, 87 (36), Ocean Sci. Meet. Suppl., Abstract OS35E-20, 2006.

 

Hsu, T-J, (2007) Modeling boundary layer and gravity driven fine sediment transport, Proceedings 30th International Conference on Coastal Engineering, ASCE, Sep. 2006, San Diego, in press.

 

Long, W., Kirby, J. T. and Hsu, T.-J. (2007), Cross-shore sandbar migration predicted by a time-domain Boussinesq model incorporating undertow, Proceedings 30th International Conference on Coastal Engineering, ASCE, Sep. 2006, San Diego, in press.

 

Hsu, T-J, Raubenheimer, B., Trowbridge, J. H., Cox, D., and Hanes, D. M., Modeling surf zone hydrodynamics and sediment transport – toward an integrated approach. Eos Trans. AGU, 87 (52) Fall Meet. Suppl., Abstract OS41C-0631, 2006.

 

Sung, L.-P, Hsu, T.-J., and Traykovski, P. A., A fluid mud transport model and its application to wave-supported gravity-driven mudflows, Eos Trans. AGU, 87 (52) Fall Meet. Suppl., Abstract OS31A-1622, 2006.

 

Hsu, T.-J. and Son, M. A fine sediment transport modeling framework and its application to fluid mud processes, Coastal Sediment ‘07, ASCE, New Orleans, to appear.

 

  

Current Research Projects:

 

1.CROSSTEX – Wave breaking, boundary layer processes, the resulting sediment transport and beach profile evolution

     PIs: Tian-Jian Hsu (UF), John Trowbridge (WHOI); Collaborate with another 6 institution, 8 PIs.

     Sponsor: Office of Naval Research (Coastal Geosciences)

     Duration: 05-08  

 

2.CAREER: 3D Multiphase Sediment Transport Modeling Framework

     PIs: Tian-Jian Hsu

     Sponsor: National Science Foundation (OCE-Physical Oceanography)

     Duration: 07-11

 

3.Collaborative Research: Coastal Modeling Management and Integration (NSF-ITR)

     PIs: Britt Raubenheimer (WHOI), Tian-Jian Hsu (UF); Collaborate with Patrick Lynett (Texas A&M), Phil Liu (Cornell).

     Sponsor: National Science Foundation (CTS)

     Duration: 05-08

 

4.A Fluid Mud Transport Model in Multi-dimensions

     PIs: Tian-Jian Hsu (UF), Peter Traykovski (WHOI)

     Sponsor: Office of Naval Research (Coastal Geosciences)

     Duration: 07-08

 

5.NOPP - Community Sediment Transport Model

     PIs: C. Sherwood (USGS), W. R. Geyer (WHOI), et al. 

     Sponsor: NOPP (subcontract from WHOI)

     Duration: 06-09

 

6.Scouring Around District’s Hydraulic Structures

     PIs: Tian-Jian Hsu 

     Sponsor: South Florida Water Management District; USGS

     Duration: 06-07

 

7.Complex Flow Through Culvert Structure by CFD Modeling  

     PIs: Tian-Jian Hsu 

     Sponsor: South Florida Water Management District; USGS

     Duration: 06-07

 

8.Effect of Fluid Mud on Bottom Boundary Layer Dynamics and Sediment Fluxes at Mud Flats

   (ONR Tidal Mud Flats DRI, Phase #1, FY07)

 

Past Research Project:

 

1.      Parameterization of a two-phase model and application to nearshore morphology

       PIs: Steve Elgar (WHOI), Tian-Jian Hsu, Dan Hanes (USGS); Collaborate with James Kirby (U. Delaware)  

       Sponsor: Office of Naval Research

       Duration: 03-05

 

Teaching Activities:

EOC 6934: Mixing and Transport in Turbulent Flow (Fall 2006, 2007)

OCP 6655: Coastal Sediment Transport (Spring 2007, 2008)

 

Professional Affiliation and Activities:

American Society of Civil Engineer (ASCE).

American Geophysical Union (AGU).

American Physical Society (APS).

 

Convener for the Nearshore Processes session in 2006 Ocean Science Meeting, American Geophysical Union, Honolulu, Hawaii, February, 2006.

Convener: 2006 AGU Fall Meeting Special Session on New Algorithms and Models for Fluvial and Coastal Sediment Transport and Surface Dynamics, San Francisco, December, 2006.

Reviewer for various national/international funding agencies (proposal review) and more than 15 different journals.

Reviewer for PFC2D/3D (Particle Flow Code in Two/Three-Dimensions) User Manual (DEM-Fluid Scheme), HCItasca, 2006.

 

 

Invited Presentations:

   A two-phase flow model for sediment transport: sheet flows, Civil and Environmental Engineering, University of Delaware, March 2002.

   A two-phase model for sediment transport, College of Oceanic and Atmospheric Science, Oregon State University, Jun. 2002.

   COFDL seminar, Applied Ocean Physics & Engineering, Woods Hole Oceanographic Institution, Nov. 2002.

   National Taiwan University, Engineering Science & Ocean Engineering, Jan. 2003.

   Cornell University, Environmental Fluid Mechanics Seminar, Civil & Environmental Eng., Feb. 2003.

   University of Delaware, Civil & Environmental Engineering, Feb. 2003.

   Johns Hopkins University, Department of Civil Engineering, March 2003.

   Woods Hole Oceanographic Institution, Applied Ocean Physics & Engineering Seminar, March 2003.

   Naval Research Laboratory, Stennis Space Center, MS, Aug. 2003.

   Coastal Ocean Forum - A Shortcourse and Workshop on Coastal Change, Nearshore Sub-tidal Process. Woods Hole Ocean. Inst., April 2004.

   Summer Lecture Series for Undergraduate Student Research Fellows, Sediment Transport on Beaches, Woods Hole Ocean. Inst., 2004.

   University of Florida, Civil and Coastal Engineering, Nov. 2004.

   University of California, Berkeley, Civil and Environmental Engineering, Feb. 2004.

   Universidad de Cantabria, Ocean and Coastal Research, Santander, Spain, April 2005.

   Texas A&M University, Civil Engineering, College Station, TX, Oct. 2005.

   University of Miami, RSMAS, Office of Naval Research Progress Review Southeast Region, March 2006.

   Workshop on Discrete Element Method, On Multiphase Modeling for Sediment Transport. U.S. Army Crop of Engineers, ERDC-GSL, May 2006.

   U.S. Army Crop of Engineers, ERDC-CHL, Vicksburg, MS, June 2006.

   Prof. Philip L.-F. Liu Symposium, Cornell University, Ithaca, NY. September 2006.

   Thermal-Fluid Seminar Series, University of Florida, Feb. 2007.

   Florida State University, Office of Naval Research Progress Review Southeast Region, May 2007.

   Gordon Research Conference, Coastal Ocean Modeling, “Sediment transport mechanics investigated by a multiphase flow approach - current status and challenges”, Colby-Sawyer College, New London, NH, June 17-22, 2007.

   National Sun Yat-sen University, Institute of Applied Ocean Physics and Undersea Technology, Kaohsiung, Taiwan, Dec 21st, 2007

   National Cheng Kung University, Tainan Hydraulics Laboratory, Tainan, Taiwan, Dec 27th 2007

   National Taiwan University, Department of Engineering Science and Ocean Engineering, Taipei, Taiwan, Dec 28th 2007.

 

 

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