APPLIED MODELING OF WATER FLOW AND CONTAMINANTTRANSPORT IN THE VADOSE ZONEInstructor:

Dr. Jirka Simunek
University of California Riverside, USAVenue:
Flinders University, Adelaide , Australia
July 5& 6, 2007

Organisers:
Drs Tapas Biswas, Gerrit Schrale & John Hutson(biswas.tapas@saugov.sa.gov.au)

South Australian R&D Institute, CRC for Irrigation Futures & Flinders University
GPO Box 397, Adelaide SA 5001
AUSTRALIAAPPLIED MODELING OF WATER FLOW AND CONTAMINANT TRANSPORT INTHE VADOSE ZONE USING HYDRUS COMPUTER SOFTWARE PACKAGESOVERVIEWThe HYDRUS modelling package is increasingly becoming the ‘Standard’ tool for modellingvariable saturated (coupled saturated and unsaturated) flow in porous media; it is being usedworld wide by government agencies, consultants, and universities. The software is robust andits reliability has been proven during the past decade. It is the perfect tool for modelling waterflow and solute transport under precision irrigation; its time-marching scheme allows modellingthe flow problem in real time (e.g., we can investigate the spatial and temporal distribution ofdrippers).
Water flow and associated chemical transport through unsaturated soil zone (vadose) also
control the quantity and quality of water flow to groundwater and surface streams. Soil andgroundwater pollution is an ever-increasing, worldwide problem. Most subsurface pollution
problems stem from activities involving the vadose zone between the soil surface and thegroundwater table. Once contaminants enter groundwater, pollution is essentially irreversible, orcan be remediated only with extreme costs.
This course is designed to familiarize participants with the principles and mathematicalanalysis of variably-saturated flow and transport processes, and the application of state-ofthe-art numerical codes to site-specific subsurface flow and transport problems.
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 offinite element techniques for solving the governing flow and transport equations. Special
attention is given to the highly nonlinear nature of the governing flow equation. Alternative
methods for describing and modeling the hydraulic functions of unsaturated porous media
are also described.
"Hands-on" computer sessions will provide participants an opportunity to become familiar
with the Windows-based STANMOD, HYDRUS-1D and HYDRUS (2D/3D) software
packages. Emphasis will be on the preparation of input data for a variety of applications,
including flow and transport in a vadose zone, variably-saturated flow through a dam, flow
and transport to a tile drain, and two-dimensional leachate migration from a landfill throughthe unsaturated zone into groundwater. Calibration will be discussed and demonstrated bymeans of both one- and two-dimensional inverse problems.
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
the HYDRUS-1D and HYDRUS (2D/3D) codes for one- and two-dimensional simulations,
respectively, the STANMOD code for evaluating solute transport in the subsurface using
one- and multi-dimensional solutions of the advection-dispersion equation, the RETC codefor evaluating the hydraulic properties of unsaturated media, and the Rosetta code forestimating the soil hydraulic properties (and their uncertainty) from soil texture and related
data. HYDRUS-1D and HYDRUS (2D/3D) are supported by interactive graphics-based
interfaces for data-preprocessing, generation of unstructured as well as structured finite

element grid systems, and graphic presentation of the simulation results. Except for
HYDRUS (2D/3D), all software packages are in the public domain.
COURSE HANDOUTS
Course handouts include lecture notes prepared by the instructor. Documentation of theRETC, STANMOD, HYDRUS-1D and HYDRUS-2D models is on a CD that will be given toeach course participant.
INSTRUCTOR
Dr. Jirka Simunek is a Professor of Hydrology with the Department of Environmental
Sciences of the University of California. His expertise is in numerical modeling of subsurface
water flow and solute transport processes, equilibrium and nonequilibrium chemicaltransport, multicomponent major ion chemistry, field-scale spatial variability, and inverse
procedures for estimating the hydraulic properties of unsaturated porous media. His numericmodels, HYDRUS-1D and HYDRUS-2D, are used by virtually all scientists, students, andpractitioners modeling water flow, chemical movement, and heat transport through variably
saturated soils. He has authored and coauthored over 100 peer-reviewed publications andover 20 book chapters. Dr. Simunek is a recipient of the Soil Science Society of America’s
Don and Betty Kirkham Soil Physics Award and serves currently as chair-elect of the Soil
Physics (S1) of SSSA. He is an associate editor of Water Resources Research, Vadose
Zone Hydrology, and Journal of Hydrological Sciences.
COURSE LOCATIONThe course will be held in the Computer Lab, Rm. 2030, Physical Sciences Building at theFlinders University, Sturt Road, Adelaide. A map of the campus can be found at
http://www.flinders.edu.au/map/. A city and campus map will be sent to you upon request.
ENROLMENT & REGISTRATION
Enrollment is limited. Please register by sending the duly filled in attached registration
form to Pauline Bowden: Bowden.Pauline@saugov.sa.gov.au or by fax: 08-830339424. All
enquiries to Dr Tapas Biswas at biswas.tapas@saugov.sa.gov.au or by phone: 08-83039730.
The fee for the short course is $650 paid by 1st June and thereafter $750 till 15th June. Fee
covers instruction, course notes, refreshments, and certificate of participation. A dinner isplanned for all the workshop participants on the night of 5th July. Lodging and outside
workshop meals are not covered.
TRANSPORTATION AND LODGING
The Flinders University campus is located in Bedford Park, just south of the Central BusinessDistrict of Adelaide, the capital city of the State of South Australia. It is 30 min drive from theAdelaide International/Domestic Airport and can be reached by taxi or rental car. Participants
are encouraged to stay at the Arkaba Hotel (http://www.arkabahotel.com.au). Please see
details in the attached registration/accommodation form. Alternately you can arrange yourown accommodation. A bus will be available to transport participants from the Arkaba Hotelto the Flinders University.

APPLIED MODELING OF WATER FLOW AND CONTAMINANT TRANSPORT IN
THE VADOSE ZONE USING HYDRUS COMPUTER SOFTWARE PACKAGESCOURSE OUTLINE
4 July 5:00 – 8:00 PM
Registration & Welcome
Nibbles and Drinks

Arkaba Hotel, Adelaide

5 July 8:30 AM-6:00 PMFlinders University, Adelaide
Registration and software installationOfficial Opening
Morning Tea
Conceptual and mathematical description of variably-saturated water
Lecture 1:
flow and solute transport processes, root-water uptake, nonequilibriumtransport, decay chains, initial conditions, boundary conditions;Lecture 2.
Analytical modeling of solute transport in the subsurface, equilibrium andnonequilibrium transport models, parameter estimation.
Computer session 1: Modeling subsurface solute transport using the STANMOD code; directand inverse applications.
Lunch
Review of the hydraulic properties of unsaturated porous media;
Lecture 3:
measurement, description, parameter estimation.
Lecture 4:
Review of numerical methods for solving the variably-saturated waterflow and solute transport equations; Application of finite element method
to 1D flow and transport; The HYDRUS-1D software package - model
structure and examples.
Computer session 2: Application of HYDRUS-1D to simple one-dimensional problems.
Afternoon Tea
Lecture 5:

Inverse modeling; application of HYDRUS-1D to laboratory and field
experiments.
Computer session 3: Advanced one-dimensional forward and inverse problems with
HYDRUS-1D.
Dinner
7:15 PM
Arkaba Hotel, Adelaide
6 July 8:30 AM-5:30 PMFlinders University, Adelaide
Application of finite element method to 2D variably-saturated water flow
Lecture 6:and solute transport; The HYDRUS (2D/3D) software package - model
structure, examples; Pre-and post-processing with HYDRUS (2D/3D)
using the finite element mesh generator.
Computer session 4: Application of HYDRUS (2D/3D) to simple one-dimensional problem.
Morning Tea

Computer session 5: Application of HYDRUS (2D/3D) to simple two-dimensional problem.
Computer session 6: Application of HYDRUS (2D/3D) to complex two-dimensional problem A.
LunchComputer session 7: Application of HYDRUS (2D/3D) to complex two-dimensional problem B.
Afternoon Tea
General session:

Other applications; discussion

Applied Modeling of Water Flow and Contaminant
Transport in the Vadose Zone - 5 & 6 July 2007
REGISTRATION FORM
Limited to 30 persons only (first come first serve basis)
To be returned to Pauline Bowden by email to bowden.pauline@saugov.sa.gov.au
or fax on (08) 83039424
Please enter your details below.

Details
Family Name:
Given Name:
Title:
Gender:Preferred Name for Badge:
Department:
Institution:
Postal Address:(institution address)

Telephone:
Fax:
Email:
Accompanying person's name:***Accompanying person is responsible for own cost of dinner $50***

Official Dinner
Venue:Start Time:
Attendance:

Arkaba Hotel- Glen Osmond Room
6.45pm for a 7.15pm startYes, I will attend
Number of persons
No, I won't attend

Registration Fees
Please keep a copy of this registration as your tax invoice
All fees are quoted in Australian Dollars ($AUD) inclusive of GST (Goods and Services Tax).
This fee includes the cost of the official dinner to be held on 5 JulyRegistration Type
Normal Delegate
Normal Delegate Late
Accompaying Person$650.00$750.00$ 50.00

RECEIVED BY 1/06/07
RECEIVED BY 15/06/07
Dinner only, no registration

The completed registration form will be processed only if accompanied by full payment of fees.
Payments will be accepted by Cheque, Visa or MasterCard.
$Option 1
ChequeCheque enclosed for
Please cross all cheques "Not Negotiable" and make payable to Primary Industries and Resources SA
Option 2Credit CardVisaMasterCard***PLEASE ENSURE YOU ENTER ALL 16 DIGITS OF YOUR CARD
CLEARLY***

Card Holders Name
Card Number
Expiry Date
Cardholders Signature

TOTAL AMOUNT TO BE DEBITED$Please do not send cash, however money orders and cheques will be received with no liability
accepted.

Send to:
SARDI Sustainable Systems
C/- Pauline Bowden
GPO Box 397, ADELAIDE SA 5001

Accommodation
All rates listed are inclusive of GST and are per room/per night including continental buffet
breakfast.

Arkaba Hotel (http://www.arkabahotel.com.au), 150 Glen Osmond Road, Fullarton (08) 8338 1100
Charges are Corp Rate

Single OccupancyTwin shareStandard
New Deluxe No Spa
New Deluxe with Spa
Executive
Luxury$120.00$135.00$145.00$150.00$165.00$135.00$150.00$160.00$165.00$180.00

Smoking/ Non Smoking

It is your responsibility to arrange payment for your accommodation.

Closing date for bookings is 7 June 2007
Bookings
Number of persons:
Number of nights:
Arrival date:
Departure date:Accommodation ChoiceStandard

New Deluxe NS

New Deluxe WS

Executive

LuxurySingle Room:Twin Share:
Share persons Name
To secure your preferred choice of accommodation it is advisable to register your preferences assoon as possible. Please list 1st preference, 2nd preference and 3rd preference for Accommodation types.
Organising room sharing is a good way to keep accommodation costs down.

Enquiries and changes to bookings:
All enquiries regarding accommodation booking and its changes should be made through Pauline Bowden,
bowden.pauline@saugov.sa.gov.au or fax on (08) 83039424 not directly to the hotel

Hotel check in / out times: check in time: 2.00 PM and check out time: 11.00 AMTransport
You will be responsible for your own transport to and from the Arkaba Hotel.
A bus will be available to transport participants from the Arkaba Hotel to the Flinders University (see below)
5-Jul ETD 8.00 am
ETA 8.30 am
Arkaba to Flinders Uni
Flinders Uni to Arkaba

5-Jul

ETD 6.10 pm

ETA 6.40 pm

Arkaba to Flinders Uni

6-Jul

ETD 8.00 am

ETA 8.30am

Flinders Uni to Arkaba

6-Jul

ETD 5.45 pm

ETA 6.15 pm