Modelling of Water Flow and Solute (Salinity) Transportin Porous Media Using the HYDRUS-1D SoftwarePackage

Instructors

Prof. Dr. Jirka Šimůnek
University of California Riverside
Riverside, CA, USA

Dr. David Rassam and Dr. Dirk Mallants
CSIRO Land and Water

Organiser
CSIRO Land and Water, Waite Campus, Adelaide, SASponsors
CSIRO Science Excellence Research Office & Goyder InstituteFebruary 28 – March 2 20171

Modelling of Water Flow andSolute (Salinity) Transport in Porous Media
Using the HYDRUS Software Package
COURSE DESCRIPTION
The course begins with a detailed conceptual and mathematical description of water flow andsolute transport processes in the vadose zone, followed by a brief overview of the use of finite
element techniques for solving the governing flow and transport equations. Special attention isgiven to the highly nonlinear nature of the governing flow equation. Alternative methods fordescribing and modelling the hydraulic functions of unsaturated porous media are also described.
"Hands-on" computer sessions provide participants an opportunity to become familiar with theWindows-based HYDRUS computer software packages, including several additional modules,
such as ROSETTA, and UNSATCHEM. Emphasis is on the preparation of input data for avariety of applications, including flow and transport in a vadose zone. Special attention will begiven to apply the major chemistry module UNSATCHEM to soil salinization and sodification
issues.

COURSE SOFTWARE
The course introduces a new generation of Windows-based numerical models for simulatingwater, heat and/or contaminant transport in variably-saturated porous media. These include theHYDRUS-1D code for one-dimensional simulations and the Rosetta code for estimating the soil
hydraulic properties (and their uncertainty) from soil texture and related data. HYDRUS-1D issupported by interactive graphics-based interfaces for data-preprocessing, generation of finite
element grid systems, and graphic presentation of the simulation results. The HYDRUS-1D
software package is in the public domain.

COURSE HANDOUTS
Course handouts include lecture notes prepared by the instructor.

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COURSE INSTRUCTORS

Dr. Jirka Šimůnek is a Professor of Hydrology with the Department of Environmental Sciencesof the University of California Riverside. He received an M.S. in Civil Engineering from theCzech Technical University, Prague, Czech Republic, and a Ph.D. in Water Management fromthe Czech Academy of Sciences, Prague. His expertise is in numerical modeling of subsurface
water flow and solute transport processes, equilibrium and nonequilibrium chemical transport,
multicomponent major ion chemistry, field-scale spatial variability, and inverse procedures for
estimating the hydraulic properties of unsaturated porous media. He has authored and co-authoredover 250 peer-reviewed journal publications, over 20 book chapters, and two books. His numericmodels, HYDRUS-1D, HYDRUS-2D, and HYDRUS (2D/3D), are used by virtually all
scientists, students, and practitioners modeling water flow, chemical movement, and heattransport through variably saturated soils. Dr. Simunek is a recipient of the Soil Science Societyof America’s Don and Betty Kirkham Soil Physics Award, and Fellow of American GeophysicalUnion (AGU), Soil Science Society of America (SSSA), American Society of Agronomy (ASA),
American Association for Advancement of Sciences (AAAS). He is a co-editor of Vadose Zone
Hydrology, associate editor of Journal of Hydrology, and a former AE of Journal of Hydrological
Sciences and Water Resources Research. In 2016 he received the CSIRO Sir Frederick McMasterFellowship.

Dr. Dirk Mallants is a Senior Principal Research Scientist with CSIRO Land and Water andbased at the Waite Campus, Adelaide (South Australia). He has a background in soil andgroundwater hydrology with more than 25 years of experience in characterising and modelling
water flow and contaminant transport in complex environments – typically variably-saturated
soils, aquifers and low-permeable porous media including deep clay formations and fractured
concretes. He contributed to establishing one of the most extensive datasets on hydraulicconductivity of aquitards. Integrating experimental observations and numerical modelling hasalways been at the centre of his research. His work includes parameterisation of pore-scale andfield-scale spatial variability in flow and transport properties, modelling processes of water flow
and contaminant transport across a range of spatial scales, and the evaluation by means ofprocess-based models of management options for water-related environmental pollution
problems. He previously had oversight on the development of the coupled reactive transport
simulator HP1 (HYDRUS-PHREEQC). The ability to incorporate coupled physical, chemical,
3geological and biological processes in the simulation of chemical migration and naturalattenuation means a significant step forward in risk assessment and testing of mitigating measures
as part of pollution prevention.

Dr. David Rassam is a Senior Research Scientist with CSIRO Land and Water based in Dutton
Park, Brisbane. He received a PhD in Environmental Geotechnics from the University ofQueensland, Brisbane, Australia. His main expertise is in modelling surface-groundwaterinteractions. He has authored 30 journal papers and book articles. He is the lead author of thebook: ‘Modelling Variably Saturated Flow with HYDRUS-2D’; he authored 10 other journal andconference papers on the applications of HYDRUS-2D software to model various flow andtransport problems

4Modeling of Water Flow and
Solute (Salinity) Transport in Porous Media
Using the HYDRUS Software Package
COURSE DETAILED OUTLINE
Venue: CSIRO Waite Laboratories, Waite Road, Entry/Gate 4, Building C1 (Soil & WaterEnvirons Centre)

Day 1 (February 28: 8:30 am – 5:00 pm):
Lecture 1:
Lecture 2:
Computer session 1:
Lecture 3:
Lecture 4:
Computer session 2:

Vadose zone flow and transport modelling: An overview.
The HYDRUS-1D software for simulating one-dimensional variablysaturated water flow and solute transport.
HYDRUS-1D: Infiltration of water into a one-dimensional soil profile.
On the characterization and measurement of the hydraulic properties ofunsaturated porous media.
Application of the finite element method to variably-saturated water flow
and solute transport.
HYDRUS-1D: Water flow and solute transport in a layered soil profile.

Day 2 (March 1: 8:30 am – 5:00 pm):
Computer session 3:
Computer session 4:

Modelling Salinity Using the Standard Module of HYDRUS-1D.
Modelling Salinity Using the UnsatChem Module of HYDRUS-1D.

Day 3 (March 2: 8:30 am – 5:00 pm):
Computer session 5:

Applications of the UnsatChem Module based on site-specific data (SA).

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Registration and contact
via email to Dirk.Mallants@CSIRO.auRegistration fee$500
This price includes course documentation and coffee breaks.
Computer exercises will be done on your own personal laptops. Please inform us if you are
not able to bring your own laptop.
Course Secretary
All mail should be addressed to:
Dirk Mallants
CSIRO Land & WaterGate 4, Waite Road, Waite Campus, Urrbrae SA 5064
Tel: +61 8 8303 8595 | Fax: +61 8 8303 8555| Mobile: 0467 818 207

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