Release Note 2014



Welcome to FEFLOW version 6.2. In this Release Note, you will find information about new features of FEFLOW, and what you need to know in order to install and get started with version 6.2.

Groundwater projects are becoming more and more demanding - requiring modelling software with more sophisticated capabilities than ever before. FEFLOW provides best-in-class technology for groundwater flow, contaminant, groundwater age and heat-transport simulations. With its efficient user interface and its yet unmatched range of functionality, FEFLOW has become a standard in premium groundwater modelling over the last 35 years.

System requirements

The recommended minimum system requirements are:

Operating systems Desktop: Windows XP (32 and 64 bit), Windows Vista (32 and 64 bit), Windows 7 (32 and 64 bit) and Windows 8 (32 and 64 bit).

Server: Windows Server 2003 (32 and 64 bit), Windows Server 2008 (32 and 64 bit) and Windows Server 2008 R2 (32 and 64 bit).
Linux: on request (
Processor 2.0 GHz Intel Pentium or higher and compatibles, or equivalents
Memory (RAM) minimum of 2 GB recommended
Hard disk FEFLOW (depending on installation options): 150-1500 MB,
Demo Data (optional): 700 MB, PEST (optional): 200 MB
Monitor 1400x1050 or larger recommended for default GUI element alignment,
possibly less convenient user-defined alignment recommended on smaller resolutions
Graphics OpenGL compatible graphics hardware
Media DVD drive compatible with dual-layer DVDs is required for installation from DVD
File system NTFS or FAT32

Please note that Personal licences cannot be used on server operating systems suitable for simultaneous access of more than one client computer. They also cannot be used for remote-desktop sessions on single-user operating systems.


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To install FEFLOW, please choose FEFLOW in the ‘MIKE by DHI Setup’ dialogue box that appears when inserting the MIKE software 2014 DVD or executing the Setup.exe file from the downloaded installation files. Press the ‘Install’ button to begin installation.

To start the FEFLOW installation, please click on 'FEFLOW Program Files'. It is recommended to allow the setup programme to check for the latest patch on the FEFLOW website to avoid any known bugs. Detailed guidelines on the necessary installation steps are provided here.

All necessary FEFLOW files and folders will be installed on your PC. Additionally, a FEFLOW entry is created, containing the icon for FEFLOW.

To use FEFLOW in licenced mode, you also need to install the license manager NetLM on your PC or on a licence server. To start the installation, please click on 'License-Manager NetLM' in the FEFLOW installer.

Licence file & dongle

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For the licence installation, please follow these steps:

  1. After purchase, the DHI-WASY software licence can be retrieved via our contact form. This requires a working Internet connection and a valid e-mail address.
  2. To install the licence, please follow the installation guidelines provided with the installation.

Product invocation

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To start FEFLOW, double click on the FEFLOW icon on your desktop, or go to Start -> All Programs -> MIKE by DHI 2014 -> FEFLOW 6.2 and select 'FEFLOW'.

Starting FEFLOW without a valid licence will cause the programme to run in demo mode. In this case, the demo mode is indicated by the word 'DEMO' in the header of the FEFLOW application window. Running in demo mode, file loading and saving is limited to 500 nodes per slice and 5 model slices.


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If you experience any difficulties, or if you have any questions, you can contact the Software Support Centre by mail, e-mail, phone or fax:

Software Support Centre
Agern Allé 5
DK-2970 Hørsholm
Tel: +45 4516 9333
Fax: +45 4516 9292

Or you can find your local support centre with support in your local language here.

New features

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Every new release of FEFLOW consists of new features and/or corrections to problems or significant inconsistencies discovered in previous releases. Please find short descriptions of the most significant news in FEFLOW version 6.2 below.

FEFLOW 6.2 also features a substantially extended range of functionality. This page presents the highlights of the new version in an overview of the most important new features and improvements.

Fixed issues

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A detailed list of bug fixes in version 6.2 is provided here.

MIKE by DHI - Agern Allé 5 - DK-2970 Hørsholm, Denmark - Tel: +45 4516 9200, Fax: +45 4516 9292 -