wflow is a completely distributed modelling platform which maximizes the use of open earth observation data, making it the hydrological model of choice for data scarce environments. Based on gridded topography, soil, land use and climate data, wflow calculates all hydrological fluxes at any given point in the model at a given time step. The movement of surface water across the landscape is determined by the reservoir and kinematic wave modules providing more accurate representation of river discharges.
The wflow computational engine is built in the Julia language, a high performance computing language and does not have a graphical user interface, being designed for maximum user flexibility and is often coupled other software such as D-Flow FM and D-Water Quality (DELWAQ) modules of the Delft3D FM Suite (1D/2D/3D modelling suite for integral water solutions) and RIBASIM (water allocation).
wflow is free to use. You can download the latest stable release through our download portal.
If you think you would benefit from user support then check our Deltares Software Service Packages.
wflow is free to use in its basic package.
For users where wflow is part of a critical workflow we recommend a service package where users receive support from Deltares during Netherlands office hours. The packages for 2020 are as follows:
|wflow Price List 2020||Fee per year (Euro)||Source code access (GPL)||Executable (Deltares license agreement)||Support hours per year||Number of users|
|wflow Basic Service Package||€ 4,000||Yes||Yes||8||1|
|wflow Advanced Service Package||€ 6,000||Yes||Yes||16||4|
|wflow Professional Service Package||€ 10,000||Yes||Yes||40||Unlimited|
If you want a tailor-made service package including integrated Deltares software then contact us at firstname.lastname@example.org.
wflow is released as free open source code under the GNU General Public license version 3.
The source code for the original wflow PCRaster Python software is available at Github (https://github.com/openstreams/wflow) for download. Whilst the documentation and release notes are available here: https://wflow.readthedocs.io/en/latest
The source code and documentation for the new wflow.jl software is available at Github (https://deltares.github.io/Wflow.jl/dev/) for download.
Minimal hardware requirements:
1 GHz Intel Pentium-processor or similar
512 MB RAM
50 MB free disk space (dependent on model size)
Windows 10 64 bit.