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.
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 (email@example.com)
|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.
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.
For the licence installation, please follow these steps:
- 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.
- To install the licence, please follow the installation guidelines provided with the installation.
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.
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
Tel: +45 4516 9333
Fax: +45 4516 9292
Or you can find your local support centre with support in your local language here.
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.
FePEST that is now included with every FEFLOW licence is a graphical user interface for using PEST by John Doherty with FEFLOW models. Its advantages include graphical support during the setup process and immediate graphical feedback on the simulation progress. With FePEST, parameter estimation or uncertainty analysis tasks can be executed in parallel on many computers – requiring only one single licence seat of a Corporate Licence for FEFLOW!
Subdomain & Storage Budget
Storage Capture/Release is a new component in the Rate Budget and Period Budget Panels for flow and transport. With this, storage change and solution error can be clearly separated in transient models. Flow Through Subdomain Boundary can be calculated exactly in new Subdomain Boundary Flow and Subdomain Boundary Volume Panels for flow and transport. Combined with the options of the already existing Rate Budget and Period Budget panels, complete and precise water balances for arbitrary subdomains of the model can be easily obtained..
Temporal Element Deactivation
During the simulation, elements of the finite-element mesh can be deactivated and reactivated. This makes it easy to simulate time-varying model domain geometry, as encountered in open-pit simulation projects, long-term simulations including morphological changes, etc.
Temporal Boundary Condition Deactivation
During the simulation, all kinds of boundary conditions can be completely deactivated and reactivated. This makes it possible to turn on and off boundary conditions without additional plug-ins or complicated and inefficient constraints. Together with element deactivation, this allows for a very flexible handling of mine-pit progress, construction pits, etc.
Groundwater Age Calculation
Groundwater Age is a new kind of problem class – similar to mass or heat transport. With this, many questions can be easily answered, such as.: How long is the average underground travel time of water pumped at a well? What‘s the percentage of bank filtration at the supply wells? What‘s the age and remaining travel time of groundwater at a certain location?
Random-Walk Particle Tracking
Streamline and Pathline Random-Walk Tracks incorporate diffusion and dispersion into the field-line computation. With this, field line analysis comes a large step closer to the capabilities of a full advection-dispersion solution at a much lower computational cost and with low preprocessing effort.
With SAMG 2.7, FEFLOW includes the latest developments in this algebraic multigrid solver. Additionally, the FEFLOW-specific settings for SAMG have been adapted to even better match the typical FEFLOW models. With this, FEFLOW reaches a new level of solution performance and stability. Pardiso (developed by O. Schenk and K. Gärtner) is a parallelised direct solver. As a direct solver, it provides a non-iterative exact solution of the equation system, at an often affordable computational cost thanks to parallelisation. Pardiso is the new default direct equation system solver.
Databases & Map Files
Tabular data from Microsoft Excel workbooks and Microsoft Access databases can be used for map display, data import and export. With this, already available data in these formats can be easily used without a need for re-formatting. Geometries and tabular data in ESRI Geodatabases, PostgreSQL and Oracle databases can be used for map display, data import and export. With the additional possibility of joining and selection on the data, project data, including geographical data, can now be easily stored without redundancies and in in one single place.
Settings for Slice, 3D, Supermesh and Cross-section Views can be collected in the new Scene Library. A user-defined folder structure can be used to keep things in order. With this, even large numbers of view settings (including animation settings!) can be easily stored without the overhead of always recreating the respective view windows when loading the model and without the memory demand for keeping them open.
- Measure tool for lenghts and areas
- Labelling of line and polygon shape files in 2D and 3D views
- Isoline labels in 3D views
- Spheres and cylinders to define starting locations for field lines
- Visualisation of the Péclet number
- Export of process variables for multiple or all time steps
- Export of Flow Rate and Flow Volume panel results
- Export of georeferenced snapshots of Slice views
- Scatter plot for all process variables
- Multiple selection in Maps, Data and VIew Components panels
- Export/import of multiple locations sets
- Export/import of multiple stored selections
- Optional divider in Inspection panel for model and maps data
- Search/filter options in Maps and Inspection panels
- Automatic addition of exported maps
- User-defined folder structure in Maps panel
- Import/export of map references and layer styles
- New default panel alignment
- Auxiliary spatial units panel(s)
- Option to copy a snapshot of chart windows to the clipboard
- Export of discrete features
- Revision of the Time-Series Editor
- Conversion between selection geometries
- Interactive linear 1D interpolation (without map as a basis)
- Quick import for previously exported FEFLOW data
- Generic Property Editor dialog for different data types, including available User Data distributions and Time Series
- New callbacks PreEnterSimulator / PostEnterSimulator
- Function for enabling storage of User Data distributions in *.dac file
- Function for elemental integration of nodal quantities
- Functions for obtaining element and discrete feature diameters
Results evaluation and visualisation
General GUI improvements
Programming interface IFM
A detailed list of bug fixes in version 6.2 is provided here.