Release information: Marine

Release Information
MIKE 21

Release Note - 2009

Introduction

Welcome to MIKE 21 Release 2009.

Hardware Requirements

The recommended minimum hardware requirements are:

Supported Operating Systems:	XP Professional (32 and 64 bit), Vista Business (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 2009 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 Zero' group is created, containing the icon for MIKE Zero and group entries for Documentation, Release Notes and Tools.

License File and Dongle^ top

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

Make sure that the provided dongle is attached to the computer (parallel or USB port - for Windows XP Professional x64 Edition USB port only)
The dongle driver is installed automatically during the setup of the program
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 MIKE software, select “Local” when prompted to select the type of License Management, and then select “Internet” and follow the on-screen instructions
To update your license file using the DHI License Updater, simply launch “Start->Programs->MIKE by DHI 2009->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/floppy disk) in \Program Files\DHI\2009\License or \Program Files (x86)\DHI\2009\License.

Product Invocation^ top

To start MIKE 21, select the 'MIKE Zero' icon under the 'MIKE Zero' group, or go to
Start -> Programs -> MIKE by DHI 2009 -> MIKE Zero and select 'MIKE Zero'.

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

software@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 2009 below.

Documentation

Overview of documentation available for all MIKE Zero products at Start -> Programs -> MIKE by DHI 2009 -> MIKE Zero -> Documentation.

MIKE 21 Oil Spill – User Guide for Oil Spill model, The guide (PDF-format) is available in
C:\Program Files\DHI\2009\MIKE Zero\Manuals\MIKE_21-3_Integrated_Models\OS

MIKE Zero

Project Explorer: Files shown in Project Map can be exported and automatically shown in Google Earth (if installed)

Geodesy Utilities - new projection types: Hotine Oblique Mercator, Oblique Mercator, Rectified Skew Orthomorphic and Rotated Longitude/Latitude

Improved Mesh Generator facilities. Examples of new functionalities are:
- Insertion of boundary lines for interpolation
- Mesh analysis. Identifies bad elements, enables edit and may improve performance considerably
- Adding, moving and deleting nodes in existing mesh
- Modifying elements in existing mesh (collapse and merge elements)
- Re-triangulation of selected region in existing mesh
- Re-interpolation of selected region in existing mesh

Computational Models and Tools

Computational performance: All marine engines as well as MIKE Flood now come in a true 64-bit version allowing for:
- Larger memory access
- Speed performance (5-15%)

MIKE 21 Boussinesq Waves

Computational performance:
- Parallel processing introduced for BW. The parallel computation employs shared memory OpenMP protocols taking advantage of the capabilities of multiprocessor and multicore CPUs.
- Additional performance increase by code optimization and reordering of computational mesh for memory optimization

MIKE 21 Flow Model FM, Mud Transport

New Dredging module:
- Tracking of (continuous) sediment spills from moving dredgers
- Type of spilling can be defined in more detail (type of dredger or dredging phase)
- Update of the seabed

MIKE 21 Oil Spill

New Oil Spill module based on rectangular grid:
- Re-designed oil spill module
- Vertical transport based on buoyancy of oil, droplet size and dispersion
- Horisontal transport as function of hydrodynamics, wind and gravitational forces in slick: spreading
- Weathering forces includes biodegradation, evaporation, emulsification, dissolution, sedimentation and photooxidation

Known Defects & Workarounds^ top

MIKE 21 2009 Service Pack 1 - May 2009

Service Pack 1 (SP1) includes fixes to inconveniences and errors, minor modifications and features to MIKE 21 Release 2009. Please note the following changes in SP1:

Module/Type	Error/Inconvenience/New feature	Status	Remarks
MIKE 21 SW	Error in calculation of reflection coefficient when using the fully spectral formulation AND structures with type "User specified" Inaccurate calculation in reflection boundary when using a 360 degree rose directional discretization of waves propagating towards north	Fixed
MIKE 21 ECO Lab	Coding error: Module won't start	Fixed
MIKE 21/3 OS	Error in license check of OS module	Fixed

MIKE 21 2009 Service Pack 2 - June 2009

Service Pack 2 (SP2) includes fixes to inconveniences and errors, minor modifications and features to MIKE 21 Release 2009 and SP1. Please note the following changes in SP2:

Module/Type	Error/Inconvenience/New feature	Status	Remarks
MIKE 21 MT	Error in update of bed due to dumping from dredgers when using several fractions Error in transition calculation when using constant value for entire domain	Fixed
MIKE 21 HD FM	Error when using gates	Fixed
MIKE 21/3 OS	The oil spill templates has been revised to correct units and remove redundant variables. Note that previously made Oil Spill setups should be revised to ensure compability with the new modified templates.	Fixed
MZToolbox	GIS Tools, Mike2Txt: Extracted xyz coordinates were dislocated from cell center position.	Fixed
Plot Composer	DFSU Plot: Displayed XYZ points using the Image Manager was positioned incorrectly.	Fixed

MIKE 21 2009 Service Pack 3 - November 2009

Service Pack 3 (SP3) includes fixes to inconveniences and errors, minor modifications and features to MIKE 21 Release 2009 and SP2. Please note the following changes in SP3:

Module/Type	Error/Inconvenience/New feature	Status	Remarks
MIKE Zero	Re-design of file name appearence in various dialogs - the file path only appears in fly-by text Data Extraction FM: Error in interpolation of wave directions when direction interval cross 0 degrees Misc. issues regarding shape file layers in editors and viewers Error in editing origo in dfs3 data files using the Grid Series Editor and Data Utility tool	Modified/Fixed
MIKE 21 HD	Error in calculation of output shear stress values Risk of error in connection with using multi-grid overland flow solver when initial conditions have been defined by a dfs2 file	Fixed
MIKE 21 PT FM	Error in output data when several classes are defined and not all classes are selected for output Error in specifying wind data when wind from HD simulation is not used Error in calculation of settling velocity when flocculation is included	Fixed
MIKE 21 ST FM	Error in interpolation of wave directions in spatial domain with input data of dfs2 and dfs1 data files when direction interval cross 0 degrees	Fixed
MIKE 21 MT FM	Error in interpolation of wave directions in spatial domain with input data of dfs2 and dfs1 data files when direction interval cross 0 degrees	Fixed
MIKE 21 SW	Error specifying constant current Error in interpolation of wave directions in spatial domain with input data of dfs2 and dfs1 data files when direction interval cross 0 degrees Error in calculation of directional spreading index from directional standard deviation when "Wave parameters (Version 2)" is used as boundary condition Inability to import 2D dfsu files defined in LON/LAT if the projection used in the simulation is not LON/LAT	Fixed
MIKE 21/3 PT	Error in creating alternative output along the vertical	Fixed

MIKE 21 2009 Service Pack 4 - February 2010

Service Pack 4 (SP4) includes fixes to inconveniences and errors, minor modifications and features to MIKE 21 Release 2009 and SP3. Please note the following changes in SP4:

Module/Type	Error/Inconvenience/New feature	Status	Remarks
MIKE Zero	Mesh Generator: - Problems reading encrypted xyz files in fast read mode - Excessive smoothing may lead to odd results Data Manager: Problems when subtracting two 2D dfsu files Plot Composer, Polar Plot: Directions are not interpreted correctly Toolbox, Mean Area Weighting: Error in temperature weighting when combining TS-data with different time axis	Fixed
MIKE 21 HD	Simulation now stops if all values are NaN values Improvements of initialization in connection with multi-cell overland solver Time steps in landslide bathymetry file no longer needs to cover the entire simulation period	Modified
MIKE 21 SW	Error in connection with spatial varying gamma values Spatial varying vector components in 2D input file may be handled incorrectly if input file is not LON/LAT or NON-UTM and the mesh file is also not LON/LAT	Fixed
MIKE 21/3 PT	Error in calculation of settling velocity when more than one class is used	Fixed
MIKE 21/3 OS Template	Water viscosity was wrongly specified as kinematic viscosity [m^2/s] instead of dynamic viscosity [Pa s] Particle size was defined by 'grain diameter [mm]', but needs to be defined by 'average grain radius [m]' The wax and asphaltene fraction was assumed to have an initial mass of 10kg each. Now the given fractions are used. This may influence the emulsion behaviour.	Fixed/Modified
MIKE 21/3 OS	An error caused the GUI not to accept some time-varying data items Concentration calculations used fixed water depth instead of current water depth Sources can now be defined in two ways using the new flux interpretation option: Off: Source defined by individual particle value. I.e. increasing the number of particles will increase the magnitude of the total source On: Source defined by total source value. I.e. increasing the number of particles will decrease the value for the individual particle	Fixed New Feature

MIKE 21 2009 Service Pack 5 - June 2010

Service Pack 5 (SP5) includes fixes to inconveniences and errors, minor modifications and features to MIKE 21 Release 2009 and SP4. Please note the following changes in SP5:

Module/Type	Error/Inconvenience/New feature	Status
MIKE Zero	Problem with blank start page in Windows 7 have been resolved	Fixed
MIKE 21 HD	Improvements in Landslide simulation to avoid crash due to rounding errors	Modified
MIKE 21 MT	Error in closure of MT output file resulted in loss of data Error in mean bed shear stress calculation in case of combined waves and very small current	Fixed
MIKE 21 MT FM	Error in mean bed shear stress calculation in case of combined waves and very small current Error in use of dredging in combination with LON/LAT coordinates	Fixed
MIKE 21 SW	Possibility of error in diffraction calculation if number of nodes exceeded number of elements	Fixed
MIKE 21/3 PT	Possible error in calculation when using more than one class in simulation	Fixed