TUFLOW - Halcrow

TUFLOW
Flood and tide simulation software
CH2M HILL is a UK distributor for BMT WBM’s
TUFLOW software. By purchasing TUFLOW
from CH2M HILL, users benefit from having
access to CH2M HILL’s UK based support team
at no extra cost!
Floods and storm tides cause extensive damage,
stress, loss of life and displace communities. To
understand and manage these risks requires software
that accurately models inundation of rivers, urban
areas and coastal floodplains. TUFLOW meets this
challenge effectively, reliably and within an
economical cost structure.
A proven and reliable solution
TUFLOW is a powerful one-dimensional/twodimensional1D/2D
hydrodynamic computational
engine that simulates river, estuarine and coastal flow.
With superior 1D/2D dynamic linking capabilities,
robustness, established performance and wide
ranging functionality, it is ideally suited to modelling
flooding from multiple sources, including:
direct rainfall and surface water
urban stormwater drainage networks
fluvial flooding from rivers and streams
storm tide and tsunami inundation
Storm tide inundation: hypothetical breach, River
Thames, London
Key features
fast, reliable & benchmarked for real-world models
advanced flood risk management analyses
flexible and effective data management
easily manage multiple events and scenarios
seamless integration with GIS platforms and
3rd party graphical user interfaces
powerful topography modification tools
robust and rapid wetting and drying
direct rainfall with advanced ground infiltration
automatic supercritical, weir and subcritical flow
switching in 1D and 2D
operational controls for hydraulic structures
urban drainage with advance manhole losses
multiple domains of any orientations and cell sizes
extensive outputs including QA and mass balance
comprehensively detailed manual
customise - create your own USER_DEFINED.dll
tutorial models and active online Forum and Wiki
Solution schemes
TUFLOW’s 2D solution is an enhancement of the
Stelling finite difference, alternating direction implicit
(ADI) scheme that implicitly solves the full 2D free
surface shallow water flow equations over a regular
grid. The enhanced scheme can handle upstream
controlled flow regimes (e.g. supercritical and weir
flow), bridge decks, box culverts, robust wetting and
drying, and other key features.
The 1D scheme is a finite difference, 2nd order,
Runge-Kutta solution and includes detailed
representation of rivers, floodplains, a range of
structures, pipe networks, gully traps and manholes.

Dynamic linking
The dynamic linking capability between 2D and 1D
domains are the most powerful, reliable and functional
on offer. Links are easily setup to interface between
1D rivers and 2D floodplains, overland urban flooding
and pipe networks, and for embedding 1D hydraulic
structures.
any orientation to the 2D grid, start completely dry,
and wet and dry during the simulation.
apply the full 2D solution, instead of substituting a
weir equation, and preserve momentum
do not force a reduction of the 2D timestep or need
to be reworked if the 2D cell size changes.
Links to other software
the ISIS-TUFLOW-PIPE link enables models built
in ISIS 1D to be dynamically linked to TUFLOW and
its 1D component, ESTRY, offering unparalleled
performance hydraulic modelling
produce flood maps and animated flood sequences
using ISIS MAPPER (available for free)
construct models using ISIS MAPPER, SMS
Graphical User Interfaces or other GIS software
Depth and velocity outputs from ISIS-TUFLOW-PIPE
TUFLOW Advection Dispersion
The TUFLOW Advection Dispersion (TUFLOW AD)
module simulates depth-averaged, 1D and 2D
constituent fate and transport. Applications include
mixing in inland waterways, fate of plumes and
flushing assessments.
MapInfo and TUFLOW productivity tools
MapInfo and TUFLOW productivity tools (miTools)
have been developed to improve the efficiency of
setting up and reviewing TUFLOW models, as well as
improving the day to day ease of using MapInfo. It
enables ‘automation’ of many of the common
repetitive tasks, saving time and money.
Multiple 2D Domains
The Multiple 2D Domains module allows any number
of 2D domains of different cell size and orientation to
be built into a model. The 2D domains can be linked
by 1D domains, or via the 2D/2D linking feature.
Levee Impact Assessment at the start, during and peak of the flood.
Richmond River, New South Wales. Yellow indicates