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Wflow is open source software, the source code can be downloaded from GitHub. For those who prefer to use official Deltares-releases we are happy to announce that:

Please register

To be able to download the Deltares-executables of wflow and participate in the wflow-forum you must be registered. If you have not registered yet, please click on "(Register)" in the very upper right corner of the screen. After following the instructions your login name will be shown (normally it looks like my.email.name.x) and you will receive an automatically generated e-mail with your password. Normally you can Sign In as soon as you receive the e-mail. Occasionally you have to wait, sometimes even more than 15 minutes, before you can Sign In.

You can use your login name and password to Sign In at all open source and free software packages of oss.deltares.nl.

Get the Deltares-executables of wflow

Prerequisite:
You need your login name you got during the "(Register)"-step, see the previous step 'Please Register'.

To obtain the Deltares-executables of wflow, please send and email to wflow@deltares.nl. By submitting this form you are requesting for the use of the Deltares-software executables of wflow. Wflow is Deltares-software; the source code of wflow is also  available as free open source software at github.com/openstreams/wflow. You may use the Deltares-software executables of wflow without any remuneration to be paid to Deltares if you accept the Wflow Software License Agreement (wflow license) which is offered to you as a PDF-file, see the license agreement . Please go to the PDF-file of the wflow License, read it and decide whether you want or do not want to accept the wflow License. Without your acceptance of the wflow license the use of the Deltares-executables of the wflow-software is prohibited and illegal. 

The wflow software is distributed in the hope that it will be useful, but WITHOUT ANY GUARANTEE OR (IMPLIED) WARRANTY. Any use of the Deltares-executables of the wflow-software is for your own risk. See the wflow license for more details. 

For more info, please contact: Stichting Deltares, P.O. Box 177, 2600 MH Delft, The Netherlands. Email: zws-info@deltares.nl. 

After submitting this form your request will be processed within 5 working days; you will receive a reply per email.

The Deltares-executables of wflow are made available free of charge and does not include support. 

Get the wflow-manual

A detailed manual can be found at the 'Download'-section, please click here. 

Build your own wflow-model

To get started, we recommend to do the tutorial 'How to build a wflow model from scratch', please go to the tutorial page.

Consult the forum

If your questions are not answered satisfactory in the wflow manual or tutorial. 

Download source code

Go to Download in the menu bar and select 'Source code'. Just follow the steps as indicated.

Build your own wflow-executables

Install Anaconda (scientific python distribution):

Download Anaconda for python 2.7 64 bit (Tested with anaconda2 2.5.0). From the Anaconda installer choose the following options: + Install to c:Anaconda + Register as default python + Add to path

Once Anaconda is installed open a command window and install netCDF4, gdal and pyproj using the following commands:

• Conda install netCDF4
• Conda install gdal=1.11
• Conda install pyproj

Install pcraster

• Download pcraster from www.pcraster.eu website (version 4.1 64 bit)
• Extract zip to root of c: This will create c:\pcraster-4.1.0_x86-64
• Add c:\pcraster-4.1.0_x86-64\python to the PYTHONPATH environment variable

Installing WFLOW itself

Download the latest zip with the source code of wflow at GitHUB. Go to the wflow-py directory and run:

• python setup.py install

To check it the install is successful, go to the examples directory and run the following command:

• Python c:\Anaconda\scripts\wflow_sbm.py -C wflow_rhine_sbm -T 100 -R testing

This should run without errors.

Browse the Development section

A number articles related to wflow have been produced in the last years. Furthermore, various PhD projects are being conducted with the use of wflow. Finally, several universities have produced content, Masters theses, report, etc., which can be accessed for free. Consult the Developments page for an overview of all this content; either for help or inspiration!