Release information: Marine

Release Information
MIKE 21

Release Note - 2011

Introduction

Welcome to MIKE 21 Release 2011.

System Requirements

The recommended minimum system requirements are:

Supported Operating Systems:	Windows XP Professional (32 and 64 bit), Windows Vista Business (32 and 64 bit), Windows 7 Professional (32 and 64 bit)
Processor:	2.0 GHz PC (or higher)
Memory (RAM):	2 GB (or higher)
Hard disk:	40 GB (or higher)
Monitor:	SVGA, resolution 1024x768 in 16bit colour
Graphic Card:	32 MB RAM (or higher), 24 bit true colour
Media:	CD-ROM/DVD drive, 20 x speed (or higher)
File system:	NTFS

Installation^ top

To install MIKE 21, please choose 'MIKE 21' in the 'MIKE by DHI Setup' dialog that appears when inserting the MIKE software 2011 DVD and then press the 'Install' button.

The setup program automatically installs all necessary MIKE 21 files and folders on your PC. Additionally, a 'MIKE by DHI 2011' entry is created, containing icons for various MIKE Zero and MIKE 21 utilities and links to documentation.

License File and Dongle^ top

To use MIKE 21 in licensed-mode please follow these steps:

The MIKE software license file (DhiLicense.dat) may be retrieved using the Internet. A working Internet connection and a valid e-mail address are required. The license file may be retrieved in two ways:

During installation of MIKE software

After installation of the MIKE software, by launching the DHI License Updater through the start menu

To retrieve your license file during installation of the MIKE software, select “Local” when prompted to select the type of License Management, and then select “Internet” and follow the on-screen instructions. Attach your hardware when prompted.
To update your license file using the License Updater, simply launch “Start->Programs->MIKE by DHI 2011->DHI License Updater” and follow the on-screen instructions.
Alternatively, the license file can simply be copied from the supply medium (attachment to e-mail from DHI or CD/DVD) in \Program Files\DHI\2011\License or Program Files (x86)\DHI\2011\License.
After completed installation, ensure that your hardware key is attached to the system.

Product Invocation^ top

To start MIKE 21, go to Start -> Programs -> MIKE by DHI 2011 -> MIKE Zero and select 'MIKE Zero'. Then you can select MIKE 21 from within the MIKE Zero Shell

Starting MIKE 21 without a DHI configured Software Key and valid license files causes the program to run in Demo mode. If this happens, a message box will inform you during program initialization. Running in Demo mode, MIKE 21 supplies full access to all editors, computational engines and editing facilities. However, restrictions apply to the setups that can actually be executed as a model simulation.

Support^ top

The Software Support Centre can be reached by mail, e-mail, phone or fax:

Software Support Centre
DHI
Agern Allé 5
DK-2970 Hørsholm
Denmark

mikebydhi@dhigroup.com
Tel: +45 4516 9333 (Open 7.30-16.00 GMT)
Fax: +45 4516 9292

New features^ top

Every new release of MIKE 21 consists of new modules, new features and/or corrections to problems or significant inconsistencies discovered in previous releases. Please find short descriptions of the most significant news in Release 2011 below.

MIKE Zero

MIKE to Google Earth: A new tool that can be used in conjunction with the Google Earth Viewer to display contour maps of georeferenced dfs2 data files. This tool replaces the older GE Plugin and has additional user-defined variables such as color scaling, datum shift and image size.

Climate Change: A new tool that can generate future climate change scenarios based on existing setups.

Geodesy Utilities - new projection types: Stereographic North Pole and Stereographic South Pole.

Improved Mesh Generator facilities:

Improved handling of large scatter data sets

Optimized speed in scatter data interpolation

Prioritization of scatter data in interpolation

Mesh refinement using bisection

Plot Composer - Rose plot: 3rd item to define duration of event

MIKE Zero Toolbox - new Time Series Batch Conversion tool: Batch conversion between dfs0, ASCII and EXCEL files

MIKE 21 'Classic'

Parallelization using OpenMP resulting in improved performance (0-50% speedup) - (Single Grid Only)

Special single precision option removed

MIKE 21 Flow Model FM

Improved performance: Parallelization using the domain decomposition approach and the message passing interface (MPI). The parallelization is implemented for all modules.

New Flather boundary conditions: Non-reflective open boundary

New output item: element area

MIKE 21 Spectral Waves

Improved performance: Parallelization using the domain decomposition approach and the message passing interface (MPI).

Improved description of structures

Output of wave power

An error has been corrected in connection with the coupled formulation for the air-sea interaction (fully spectral formulation). The stopping criterion has been corrected in the iterative procedure for calculation of the total stress as function of the wave induced stress and the wind speed. This correction may influence the calculated results.

MIKE 21 Mud Transport FM

Improved performance: Parallelization using OpenMP of Mud transport process calculations

Dynamic time step in generic mud transport subroutines to resolve problems with settling and mass conservation.

MIKE 21 Sand Transport FM

Changed behavior for pure current description: For equilibrium transport description both bed load and suspended load is reduced in case of limited layer thickness.

MIKE 21 Particle Tracking FM

Improved performance: Parallelization using OpenMP

Dynamic memory allocation for particles

More flexible specification of sources

New output functionality:

2D output of deposited material and concentrations within a given z-range

Flexible output of particle track data

MIKE 21 Oil Spill

Oil Spill based on rectangular grid: New improved oil spill template

New Oil Spill model in FM series

Accessed via a new combined ECO Lab/Oil Spill user interface in the FM Editor

New oil spill template (same as in the 'classic' series)

MIKE 21 Curvilinear

Optimization of code utilizing parallel processing

64 bit application thus able to solve larger systems

MIKE 21 Toolbox

Cyclone tool: Complete revision including new choice between four different parametric formulations

Known Defects & Workarounds^ top

MIKE 21 Service Pack 1, February 2011^ top

Module/Type	Error/Inconvenience/New Feature	Status
MIKE Zero	File extensions not registered	Fixed
MIKE 21 HD	The transformation of flux from one area to the next is not handled correctly	Fixed

MIKE 21 Service Pack 3, April 2011^ top

Service Pack 3 (SP3) includes fixes to inconveniences and errors, minor modifications and features to MIKE 21 Release 2011 and SP1. Please note the following changes in SP3:

Module/Type	Error/Inconvenience/New Feature	Status
MIKE Zero	Climate change: Problem related to delete values in dfs0 files Plot Composer: Problem with font resizing in exported images (error introduced in Release 2011) Bathymetry Editor: Will now accept gif89a format as background image	Fixed
ECOLAB	Incorrect formulation in template "WQlevel4ColiPhos.ecolab" caused mass balance errors	Fixed
MIKE 21 SW	Note the update of new features in the MIKE 21 Spectral Waves section above	Fixed
MIKE 21 BW	Problem with specifying more than one point in deterministic output	Fixed
MIKE 21 MT	Error in erosion/deposition of Sand Fractions Various errors in Bed shear stress calculation for combined waves and currents Missing consistency between combined waves and currents and pure current results	Fixed
MIKE 21 MT FM	Error in erosion/deposition of Sand Fractions Various errors in Bed shear stress calculation for combined waves and currents Missing consistency between combined waves and currents and pure current results Error in sum-check for initial fraction distribution Error applying dredging when using MPI	Fixed
MIKE 21 PT FM	Determination of particle position near element face could fail in special conditions Error in class specification when excluding classes from simulation	Fixed
MIKE 21 OS FM	Determination of particle position near element face could fail in special conditions	Fixed
MIKE 21/3 PT	Incorrect handling of wind directions in model	Fixed
MIKE 21 C	Inconsistency with Release 2009 and stability problems	Fixed
MIKE 21 Toolbox	Tidal Analysis of currents could not handle very long time series	Fixed

MIKE 21 Service Pack 4, June 2011^ top

Service Pack 4 (SP4) includes fixes to inconveniences and errors, minor modifications and features to MIKE 21 Release 2011 and SP3. Please note the following changes in SP4:

Module/Type	Error/Inconvenience/New Feature	Status
MIKE Zero	Plot Composer: Problems in Rose Plot using u and v components as input items Mesh Generator cannot accept vertex conversion more than once Climate Change: Problem with averaging of delta change values Issue with the license system occasionally failing in multi-core environments	Fixed
WS Wave Analysis Tool	WS Digital filtering: Issue when analysing dfs2 files	Fixed
ECOLAB	Error in handling the boundary conditions for fixed (non-transported) ECOLab state variables	Fixed
MIKE FM	Performance when merging dfsu files during a simulation using MPI	Improved
MIKE 21/3 OS	Combination of flood/dry and wind drift may lead to illegal sub-timestep The EUM types of the output items have been added In particle sources the active particle area is now scaled by the number of particles when the option 'Mass and concentration values interpreted as flux' is enabled Sign of wind deflection angle is now automatically determined from the setup location. To prevent auto-adjustment please see FAQ312. Optional output features have been implemented (please see FAQ313) Setups in Refinery example optimized for speed	Fixed / New Feature
MIKE 21/3 PA/SA	SA: Optional output of oil statistics (total oil/exposure time) during runtime	New feature

MIKE 21 Service Pack 6, October 2011^ top

Service Pack 6 (SP6) includes fixes to inconveniences and errors, minor modifications and features to MIKE 21 Release 2011 and SP4. Please note the following changes in SP6:

Module/Type	Error/Inconvenience/New Feature	Status
MIKE Zero	Mesh Generator: - Interpolation used inactivated 'Set value from scatter data' even though prioritization was selected - Sometimes use of quadrangular elements could lead to wrong coding of internal node points Data Manager: Statistics tool calculate a wrong mean value in elements experiencing flooding and drying Plot Composer: Problems in dfsu plot concerning vector reduction MIKE Zero Toolbox, Time Series Batch Conversion: - Export of dfs0 to ascii now saves delete values by the actual value - Default date format in ascii files exported from dfs0 changed to yyyy-mm-dd - Delete value not written/read correctly to/from template file	Fixed
MIKE 21 BW	Error using dfs1 data file to define open boundary Map projection information in output files only saved by map projection name, not the full map projection string	Fixed
MIKE FM	MPI: Illegal Instruction crash during the partitioning phase of the simulation on certain Intel Core 2 processors	Fixed
MIKE 21 EL FM	Elimination of 'dead' particles during simulation may lead to crash	Fixed
MIKE 21 PT FM	Possible crash when particles are moving through quadrangular mesh elements	Fixed
MIKE 21/3 OS	Selecting other than 1st item of a dfs0 file as forcing/constant gives wrong value The grid and wind field rotation may not be correctly considered for particle movement Incorrect handling of source coordinates defined in LON/LAT causing an error Incorrect check of matching extension of wind and flow fields	Fixed
MIKE 21/3 PT	Error in code restricted number of output items The grid and wind field rotation may not be correctly considered for particle movement	Fixed
MIKE 21 C	Grid Generator: Various issues regarding functionality and online help	Fixed

MIKE 21 Service Pack 7, January 2012^ top

Service Pack 7 (SP7) includes fixes to inconveniences and errors, minor modifications and features to MIKE 21 Release 2011 and SP6. Please note the following changes in SP7:

Module/Type	Error/Inconvenience/New Feature	Status
MIKE Zero	User Settings: E-mail notification not working Mesh Generator: Possible incorrect definition of embedded polygons Data Manager: - Statistics: mesh corruption when using sigma-z level dfsu file - Calculator: Default calculation mode is now "Discrete values" Data Viewer: - Extracted time series does not contain correct delete value - Extracted time series may give values in dry points when using Interpolated values even if dfsu file is saved by 'Only real wet area' Plot Composer, Rose plot: Number of decimals in color legend is now optimized MIKE Zero Toolbox, Grd2MIKE: Issue when NODATA_VALUE is not an integer	Fixed
Ws Wave Analysis Tool	WS Reflection Analysis: Utility to perform wave reflection analysis in connection with model flume tests	New feature
MIKE 21 SW	Crash when importing ascii file to define structure	Fixed
MIKE FM	MPI: - Gates, culverts and weirs is not treated correct if these structures is placed at an interface between two subdomains - Discharge lines is not calculated correctly if the line is placed at an interface between two subdomains Incorrect discharge calculation for composit structures (and weirs) when long/lat is used Incorrect calculation of turbine position in case of MPI or when a defined turbine is excluded from calculation	Fixed
MIKE 21/3 PT	User defined unit not considered by model engine Invalid source position when using LONG/LAT coordinate system Invalid particle track positions when using LONG/LAT coordinate system	Fixed
MIKE 21/3 OS	Invalid source position when using LONG/LAT coordinate system Invalid particle track positions when using LONG/LAT coordinate system	Fixed
MIKE 21 Toolbox	Generating sediment transport table: Occasional endless loop Tide analysis of heights: invalid mean shift in .con file in case of negative value	Fixed
MIKE 21 C	Possible crash during calculation of bed loads Problem with interpolated output values at dry elements	Fixed