Prof. George Constantinescu

IIHR - Hydroscience & Engineering, The University of Iowa

My Profile

About

Dr. Constantinescu is a Professor in the Civil and Environmental Engineering Department at the University of Iowa and a Research Engineer at IIHR-Hydroscience and Engineering. Dr. Constantinescu got his Ph.D. at the University of Iowa in 1998. Following this, he occupied various research positions at Arizona State University and at the Center for Turbulence Research and the Center for Integrated Turbulence Simulations at Stanford University where he worked on the development of novel numerical algorithms for viscous flows, Detached Eddy Simulation and computational aero-acoustics. He then joined the University of Iowa as an Assistant Professor in 2004. His research program is based on the use of eddy-resolving simulations to understand the physics of several important classes of environmental and geo-physical flows. Dr. Constantinescu’s current research focuses on turbulence and transport in rivers and lakes, stratified flows, shallow flows, eco-hydraulics, numerical modeling of floods and flow in porous media. -Associate Editor, IAHR Journal of Hydraulic Research, 2007-present -Associate Editor, IAHR Journal of Ecohydraulics, 2015-present -Vice Chair IAHR Fluvial Hydraulics Committee 2023-2025 -Chair, IAHR Fluid Mechanics Committee, 2009-2013 IAHR monograph Rodi, W, Constantinescu, G. and Stoesser, T. (2013) “Large Eddy Simulation in hydraulics” IAHR Monograph, CRC Press, Taylor & Francis Group (ISBN-10: 1138000247) 310 pages -Organizer and Chair of the 3rd IAHR International Symposium on Shallow Flows, Iowa City, IA, USA, June 2012 (http://www.iihr.uiowa.edu/shallowflowsconference-2) -Organizer and Chair of the IAHR 8th International conference on fluvial hydraulics, River Flow 2016, St Louis, Missouri in July 2016 (http://www.riverflow2016.org) HONORS: -2001- Best Technical Note Award in the ASCE Journal of Hydraulic Engineering, awarded by the Env. and Water Resources Institute (EWRI) -2011- Hilgard Award for Best Paper in the ASCE Journal of Hydraulic Engineering, awarded by the Env. and Water Resources Institute (EWRI) -2013 - Arthur Ippen Award awarded by the International Association of Hydraulic Research (IAHR).

Career Type:

Scientist/Researcher/Academic

Organization Type:

Universities and Academia

Expertise Fields/Interests:

turbulence and transport in rivers and lakes, stratified flows, shallow flows, eco-hydraulics, numerical modeling of floods and flow in porous media.

Major Achievements:

Technical Committees

Committee Name
Committee on Fluvial Hydraulics
Committee on Fluid Mechanics
Committee on Ecohydraulics

IAHR Position

Committee Name	Position	Start Date	End Date
Committee on Fluvial Hydraulics	Chair	2024-06-15	Now
IAHR Council	Technical Committee Chair	2024-06-15	Now
Committee on Fluvial Hydraulics	Vice Chair	2023-03-19	2024-06-15
Committee on Fluvial Hydraulics	Member	2019-09-01	2023-03-18
Committee on Fluid Mechanics	Co-opted	2017-08-29	2021-07-01
JOE Editorial Board	Associate Editors	2017-01-01	Now
Committee on Fluid Mechanics	Past Chair	2013-09-08	2017-08-29
Committee on Fluvial Hydraulics	Co-opted	2013-09-08	2017-08-22
JHR Editorial Board	Associate Editors	2012-01-01	Now
Committee on Fluid Mechanics	Chair	2012-01-01	2013-09-08

My Papers and Presentations

Title	Year
Flow around an isolated boulder-like obstacle: effects of modeling approach and Reynolds number	2024
On the Role of Free-Surface Treatment for Simulating Flow Past Submerged Obstacles	2023
Channel Curvature Effects on the Critical Froude Number for Shear Failure of Riprap Stones Used to Protect Abutments Against Erosion	2022
Flow, Sediment Entrainment Processes and Drag Forces Past Isolated Freshwater Mussels	2022
Simulation of Flow Around a Wall-Mounted Semi-Ellipsoid – Comparison of URANS and DES Modelling Approaches	2022
A multi-parameter design formula for riprap size selection at wing-wall abutments	2021
Two-phase flow DES and URANS simulations of pump-intake bay vortices	2020
Application of a 3-D CFD Model to Investigate Flood-Related Engineering Problems	2018
Open Channel Flow Past a Rectangular Patch of Submerged Vegetation	2018
Development and Validation of a 3D Numerical Model to Simulate Floods in Natural Streams	2015
Far Field Structure of Turbulent Shallow Mixing Layers Between Parallel Streams	2015
Flow and Turbulence Structure Past a Dense Circular Patch of Vegetation	2015
Gravity Currents Interacting with a Bottom Barrier	2015
The Influence of Porosity on the Structure and Behavior of Gravity Currents Propagating into an Aquatic Canopy	2014
A Numerical Investigation of Flow Past Two-Dimensional Dunes in a Long Channel	2013
A Numerical Study of Shallow Mixing Development over Flat Surface and Dunes	2013
Flow and Turbulence Structure Around an In-Stream Rectangular Cylinder with Scour Hole	2013
Flow Past a Circular Patch of Emerged Vegetation	2013
LES of Lock-Exchange Gravity Currents Propagating into a Fully-Vegetated Channel	2013
Effect of Reynolds Number and Abutment Geometry on the Flow and Turbulence Structure Around an Abutment with a Large Scour Hole	2011
Effect of Reynolds Number on the Propagation of Lock Exchange Gravity Currents in a Porous Medium	2011
An Experimental and Numerical Investigation of Near–Transducer Errors in ADCP Measurements	2009
Numerical Investigation of Three-Dimensional Flow Structure at a River Confluence	2009
A LES Investigation of the Structure of Intrusive Boussinesq Gravity Currents	2007
Analysis of Coherent Structures Generated by Plant Stems Using LES	2007
Coherent Structures in the Flow Around a Bridge Abutment and a Bridge Pier at Equilibirium Scour Conditions	2007
Comparison of Large Eddy Simulation, Detached Eddy Simulation and Unsteady RANS Numerical Predictions of Flow Past a Bottom River Cavity	2007
Effect of Relative Submergence on the Flow and Mass Exchange Processes in a Channel with Two Lateral Groynes	2007
2-D Large Eddy Simulation of Lock-Exchange Gravity Current Flows	2005
A Fully 3D Non-Hydrostatic Model for Prediction of Flow, Sediment Transport and Bed Morphology in Open Channels	2005
Coherent Structures in Pump-Intake Flows: A Large Eddy Simulation (LES) Study	2005
Flow and Mass Exchange Processes Between a Channel and a Cavity Filled with Either a Neutrally Buoyant or a Dense Miscible Contaminant	2005
LES Simulation of Contaminant Removal from the Embayment Area Between Two Vertical Groynes in a Channel	2005
The Horseshoe Vortex System Around a Circular Bridge Pier on a Flat Bed	2005
Use of a 3D RANS Model to Predict Stratification Effects Related to Fish Passage at Hydropower Dams	2005

My Videos

Title	Year

IAHR Awards

IAHR Awards	Date
Arthur Thomas Ippen Award	2013