Yi-Ju Chou

Ph.D. Candidate
Environmental Fluid Mechanics Laboratory
Department of Civil and Environmental Engineering
Stanford University
E-Mail: yjchou@stanford.edu


I am a doctoral student working with Professor Oliver Fringer in the Environmental Fluid Mechanics Laboratory at Stanford University.
My research is to study hydrodynamics in environmental and geophysical flows using numerical simulation with an emphasis on
sediment transport and resulting bedform dynamics. In my current research project, a computational fluid dynamics (CFD) code along
with a large eddy simulation (LES) turbulence model, a sediment transport model, and the dynamic mesh is developed to simulate
hydrodynamics and bedform dynamics in coastal oceans and rivers. This numerical tool enables the study of detailed properties of sand
ripple dynamic under various wave-current forcing and associated physical processes in the coastal environment.

Click to see my research page.

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EDUCATION
Ph.D. Candidate, Environmental Fluid Mechanics, minor in Computational and Mathematical Engineering, Stanford University, USA (in progress)

RESEARCH INTERESTS

  • CFD for environmental flows
  • Sediment transport
  • Turbulent flow physics and modeling
  • Fluvial and coastal geomorphogy modeling
  • Multiphase flow modeling
  • Atmospheric and ocean modeling
  • Dynamic mesh method
  • Immersed boundary method

    • JOURNAL PUBLICATIONS

    Y. J. Chou and O. B. Fringer, 2009, "A model for the simulation of coupled flow-bedform evolution in turbulent flows", Journal of Geophysical Research (submitted).

    Y. J. Chou and O. B. Fringer, 2009, "Consistent discretization for simulation of flows with moving generalized curvilinear coordinates", Int. J. Numer. Methods Fluids, DOI: 10.1002/fld.2046.

    Y. J. Chou and O. B. Fringer, 2008, "Modeling dilute sediment suspension using LES with a dynamic mixed model", Pysics of Fluids, 20, 115103. PDF

    F. C. Wu and Y. J. Chou, 2004 "Tradeoffs associated with sediment-maintainance flushing flow: A simulation approach to exploring noninferior options", River Research and Applications, 20:591-604

    F. C. Wu and Y. J. Chou, 2003 "Simulation of gravel-sand bed response to flushing flows using two-fraction entrainment approach: Model development and flume experiment", Water Resources Research, 39(8):1211, doi:10.1029/2003WR002184.

    F. C. Wu and Y. J. Chou, 2003 "Rolling and lifting probabilities for sediment entrainment", Journal of Hydraulic Engineering, ASCE, 129(2):110-119.

    F. C. Wu, H. W. Shen, and Y. J. Chou, 2001 "Variation of roughness coefficients for unsubmerged and submerged vegetation-Closure", Journal of Hydraulic Engineering, ASCE, 127(3):241-245.

    F. C. Wu, H. W. Shen, and Y. J. Chou, 1999 "Variation of roughness coefficients for unsubmerged and submerged vegetation", Journal of Hydraulic Engineering, ASCE, 125(9):934-942.

    JOURNAL PUBLICATIONS IN PREPARATION

    Y. J. Chou, O. B. Fringer, and J. R. Lacy "Numerical study of bedform evolution under combined wave-current forcing" Jounrnal of Geophysical Research (in preparation).

    Y. J. Chou and O. B. Fringer "An LES-multiphase approach for numerical simulation of particle-laden turbulent flows" International Journal of Multiphase Flows (in preparation).

    CONFERENCE PRESENTATIONS AND TALKS

    Y. J. Chou, 2009 "Numerical simulation of turbulence, sediment transport, and the resulting morphological dynamics" California Institute of Technology, Pasadena, CA.

    Y. J. Chou and O. B. Fringer, 2009 "Numerical simulation of turbulence-induced sediment transport and the resulting bedform dynamics" 2nd Workshop on Turbidity Currents, Santa Barbara, CA.

    Y. J. Chou, O. B. Fringer, and J. R. Lacy, 2008 "Numerical study of sediment suspension over bedforms in combined flows" Poster, AGU Fall Meeting, San Francisco, California.

    Y. J. Chou and O. B. Fringer, 2006 "An unstructured immersed boundary method for simulation of flow over topograpy" Proceedings of the 9th Estuarine and Coastal Modeling Conference, 568-584, Charlston, South Carolina.