Department of Civil and Environment Engineering
Institute of CyberScience
Penn State University
University Park, PA 16802
Phone: (814) 863-2940 (o)
We are always looking for motivated graduate and undergraduate students.
Please contact me if interested.
- 4/7/2017: A new research project to develop a 3D ecohydraulic model for rivers with complex instream structures.
- 3/25/2017: A new research project to investigate the motion and fate of underwater munitions.
- 1/20/2017: Another
couple of papers published: density current over macro-roughness,
roughness estimation of a subglacial conduit, CFD analysis of an
instream structure - Engineered Log Jams (ELJ).
- 3/30/2016: Another accepted paper with the title "Quantification of the bedload effects on turbulent open channel flows" by Journal of Geophysical Research - Earth Surface.
- 3/11/2016: Our paper on analystical solution for 2D suspended sediment transport has been accepted by Journal of Hydraulic Research.
- 2/20/2016: A paper on a
new analytical model for sediment oxygen demand has been published by ASCE Journal of Environmental Engineering.
- 2/15/2016: A grant from
Amazon to use AWS cloud computing for river restoration
- 01/20/2016: Xiaofeng gave a one-day short course to Taiwan Water Resources Agency.
- 06/15/2015: A new
research project from NSF to study the hydraulics in subglacial
- 06/01/2015: Xiaofeng will work with U.S. Army of Corps of Engineers this summer for three months through an Intergovernmental Personnel Assignment ((IPA) aggreement, on computational model development and applications.
- 05/25/2015: A new
research project to use CFD to evaluate the accuracy of two USGS
suspended sediment samplers.
- 05/17/2015: Xiaofeng co-taught a one-day short course on SRH-2D modeling at EWRI Congress 2015 with Dr. Yong Lai (developer of SRH-2D model at Bureau of Reclamation). Course matrials can be found on our GitHub portal (link)
- 03/05/2015: Our group won
an internal grant funded by PSIEE with the title "3D Data Acquisition and 3D Printing to
Construct “Digital Twins” for Water and Biogeochemical Research",
with co-PIs Drs William Burgos and Li Li. This grant will fund a 3D
printer and scanner.
- 01/09/2015: Xiaofeng has
been appointed as Associate Editor to the Journal of Hydrualic Engineering, ASCE.
- 04/15/2014: A
coorporative agreement between PSU and U.S. Bureau of Relcamation has
been signed to do computational modeling on hydraulics and
morphodynamics around large woody debris.
- 01/24/2014: Our paper
on the analytical solution of suspended sediment distribution with
arbitrary diffusivity distributions has been accepted by Journal of Hydraulic Engineering.
Quick links to our research
- Numerical models:
- OpenFOAM: Our major research package with multiple applications
- Direct Numerical Simulations: Our research on DNS
- HydroSed2D: Our open source 2D depth-averaged hydrodynamic model with sedimen transport.
- EFDC: Environmental Fluid Dynamics Code, we used it for the Chicago River, IL, and Clinton Lake, IL.
- Experimental work:
- Scour around object under waves and currents
- Density current over rough and uneven bottom
- Field measurement of flow, stage, and water quality
- Oscillation of free surface pipe flows
- Analytical work:
- PH.D. (2008) Civil Engineering, University of Illinois at Urbana-Champaign, USA
- M.S. (2007) Applied Mathematics, University of Illinois at Urbana-Champaign, USA
- M.S. (2003) Environmental Science, Peking University, Beijing, China
- B.E. (2000) Hydraulic Engineering, Tsinghua University, Beijing, China
- 2014 – Assistant Professor, Dept. of Civil and Environmental Engineering, Penn State University, USA
- 2010 – 2013 Assistant Professor, Dept. of Civil and Environmental Engineering, University of Texas at San Antonio, USA
- 2009 – 2010 Visiting Research Assistant Professor, Dept. of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, USA
- 2008 – 2009 Postdoctoral Research Associate, Dept. of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, USA
- Robust ecohydraulic 3D modeling tools for rivers with complex instream structures, PI, U.S. Bureau of Relcamation, 2017-2020
- Three-dimensional computational modeling of turbulent flow field, bed morphodynamics and liquefaction adjacent to munitions", PI, Strategic Environmental Research and Development Program (SERDP), 2017-2020.
- Collaborative Research: Visualization, analysis, and HPC
modeling of subglacial hydrology from high-resolution 3D conduit scans
acquired with a novel sensor, PI, NSF, 2015-2017 (no-cost extension to 2018)
- Assignment agreement of Intergovernmental Personnel Act
(IPA): modeling of scour and soil erodability test apparatus, PI, U.S. Army Corps of Engineers, 2015
- Accuracy evaluation and verification of FISP sediment samplers through CFD modeling, PI, USGS, 2015-2016
- Quantitative modeling tools for scour and morphological impact due to large wood debris structures, PI, U.S. Bureau of Relcamation, 2014-2017
- Pore-scale modeling of turbulent flows with realistic and physically correct particle arrangement, PI, U.S. Army Corps of Engineers, 2013-2015
- CNIC: U.S.-Danish Research Planning Visit to Catalyze Computational and Experimental Research on Scour Protection of Offshore Wind Farms, PI, National Science Foundation, 2012-2013
- Assessment of the effects of regional channel stability and sediment transport on roadway hydraulic structures, PI, Texas DOT, 2011-2013
- Empirical flow parameters-A tool for hydraulic model validity assessment, co-PI, (PI: Theodore Cleveland, Texas Tech University), Texas DOT, 2010-2012
- Synthesis of Hydrologic and Hydraulic Impacts, co-PI (PI: Hatim Sharif, University of Texas at San Antonio), Texas DOT, 2010-2011
- Two-dimensional modeling of hydrodynamics, sediment transport, bed scour and armoring in St. Clair River, G. Parker (PI), X. Liu (Co-PI), sponsored by International Joint Commission, International Upper Great Lakes Study, 2008
- Wuhan University, China, "Computational hydraulics with
- Cornell University, "Computational modeling of free surface flows
around arbitrary objects:
Applications for environmental hydraulics,", 2014.
- PSU Fluid Dynamics Research Consortium (FDRC), "Immersed boundary method for free surface flows around arbitrary objects using OpenFOAM: Applications for environmental hydraulics," 2014.
- PSU Math Department, "Got PDEs to solve? Try the open source computational physics platform OpenFOAM®," 2014.
- U.S. Army Corp of Engineers, Vicksburg, MS, "Computational Fluid Dynamics Modeling of Porous Hydraulic Structures: A New Approach for an Old Problem," 2014.
Bureau of Reclamation, Denver, CO, "Computational Fluid Dynamics
Modeling of Porous Hydraulic Structures: A New Approach for an Old
- Flow Penetration into Porous Hydraulic Structures:A New
Computational Approach for an Old Multi-scale Problem, Univeristy of
Delaware, USA, 2013
- Flow Penetration into Porous Hydraulic Structures:A New
Computational Approach for an Old Multi-scale Problem, LSU, USA, 2013
- Density Current over Rough and Uneven Bottoms, Department of Civil and Environmental Engineering, TAMU, USA, 2013
- Simulation of Flow Field Around and Inside Scour Protection with Physical and Realistic Particle Configurations, Technical University of Denmark (DTU) and Danish Hydraulic Institute (DHI), Denmark, 2012
- Generalized Kleiser and Schumann's Influence-Matrix Method for Direct Numerical Simulations of Turbulent Flows, National Microgravity Laboratory, Institute of Mechanics, Chinese Academy of Sciences, Beijing, China, 2012
- How can Angry Birds© save the world?Current research in the environmental fluid dynamics group at UTSA, Department of Civil and Environmental Engineering, University of Houston, USA, 2012
- DNS Simulations of Density Current using Generalized Kleiser and Schumann's Influence-Matrix Method, Department of Civil and Environmental Engineering, TAMU, USA, 2011
- Generalized Velocity Boundary Conditions and "tau" Error Corrections for Kleiser and Schumann's Influence-Matrix Method, UTSA, USA, 2010
- Modeling of Sediment Transport and Porous Medium Response under Currents and Waves, UT Austin, USA, 2010
- Numerical Models for Scour around Object under Currents and Waves, Argonne National Lab, Chicago, USA, 2009
- Local Scour and Liquefaction around Objects under Currents and Waves, University of Texas at San Antonio, USA, 2009
- Environmental Multiphase Flow Modeling, Pacific Northwest National Lab, USA, 2009
- Computational Modeling of Environmental Hydraulics, Queen’s University at Belfast, UK, 2009
- Modeling of Sediment Transport and Porous Medium Response Under Current and Waves, Tsinghua University, P.R. China, 2009
- Multiphase flow in environmental hydraulics: sediment transport, settling tanks, water quality and more. University of Illinois at Urbana and Champaign, USA, 2008
- Local Scour and Liquefaction around Objects under Waves, University of Illinois at Urbana and Champaign, USA, 2006