DHI MIKE 3 Flow Model FM Manuale utente
MIKE 2017
MIKE 3 Flow Model FM
Particle Tracking Module
User Guide
2
3
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4 Particle Tracking Module FM - © DHI
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CONTENTS
1 ABOUT THIS GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2 Assumed User Background . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3 General Editor Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3.1 Navigation tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3.2 Editor window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3.3 Validation window . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.4 Online Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1.1 Application areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 GETTING STARTED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4 EXAMPLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2 Corner Flow Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2.1 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2.2 Scenario . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2.3 Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.2.4 Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.2.5 Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5 PARTICLE TRACKING MODULE . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.1 Classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.1.1 Class description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.2 Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.2.1 Particle source specification . . . . . . . . . . . . . . . . . . . . . . 20
5.2.2 Remarks and hints . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.3 Decay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.3.1 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.3.2 Class decay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.3.3 Remarks and hints . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.4 Settling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.4.1 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.4.2 Class settling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.5 Dispersion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.5.1 Dispersion specification . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.5.2 Recommended values . . . . . . . . . . . . . . . . . . . . . . . . . 31
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5.6 Erosion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.6.1 General description . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.6.2 Class erosion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.7 Drift Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.7.1 General description . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.7.2 Class drift profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.8 Hydrodynamic conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.9 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.9.1 User specified temperature . . . . . . . . . . . . . . . . . . . . . . 35
5.10 Salinity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.10.1 User specified salinity . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.11 Density . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.11.1 User specified density . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.12 Bed Roughness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5.12.1 General description . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5.12.2 Bed roughness from hydrodynamic model . . . . . . . . . . . . . . . 37
5.12.3 User specified bed roughness . . . . . . . . . . . . . . . . . . . . . 38
5.13 Wind Forcing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.13.1 User specified wind . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.14 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5.14.1 Output specification . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5.14.2 Output items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Purpose
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1 ABOUT THIS GUIDE
1.1 Purpose
The main purpose of this User Guide is to enable you to use the MIKE 3 Flow
Model FM, Particle Tracking Module, for applications involving the simulation
of transport and fate of dissolved and suspended substances discharged or
accidently spilled in lakes, estuaries and coastal areas or at the open sea.
1.2 Assumed User Background
Although the particle tracking module has been designed carefully with
emphasis on a logical and user-friendly interface, and although the User
Guide and Online Help contains modelling procedures and a large amount of
reference material, common sense is always needed in any practical applica-
tion.
In this case, “common sense” means a background in sediment transport
problems, which is sufficient for you to be able to check whether the results
are reasonable or not. This User Guide is not intended as a substitute for a
basic knowledge of the area in which you are working: Mathematical model-
ling of particle transport processes.
It is assumed that you are familiar with the basic elements of MIKE Zero: File
types and file editors, the Plot Composer, the MIKE Zero Toolbox, the Data
Viewer and the Mesh Generator. The documentation for these can be found
by the MIKE Zero Documentation Index.
1.3 General Editor Layout
The MIKE Zero setup editor consists of three separate panes.
1.3.1 Navigation tree
To the left there is a navigation tree showing the structure of the model setup
file, and it is used to navigate through the separate sections of the file. By
selecting an item in this tree, the corresponding editor is shown in the central
pane of the setup editor.
1.3.2 Editor window
The editor for the selected section is shown in the central pane. The content
of this editor is specific for the selected section, and might contain several
property pages.
ABOUT THIS GUIDE
8 Particle Tracking Module FM - © DHI
For sections containing spatial data - e.g. sources, boundaries and output - a
geographic view showing the location of the relevant items will be available.
The current navigation mode is selected in the bottom of this view, it can be
zoomed in, zoomed out or recentered. A context menu is available from
which the user can select to show the bathymetry or the mesh, to show the
optional GIS background layer and to show the legend. From this context
menu it is also possible to navigate to the previous and next zoom extent and
to zoom to full extent. If the context menu is opened on an item - e.g. a
source - it is also possible to jump to this item’s editor.
Further options may be available in the context menu depending on the sec-
tion being edited.
1.3.3 Validation window
The bottom pane of the editor shows possible validation errors, and it is
dynamically updated to reflect the current status of the setup specifications.
By double-clicking on an error in this window, the editor in which this error
occurs will be selected.
1.4 Online Help
The Online Help can be activated in several ways, depending on the user's
requirement:
F1-key seeking help on a specific activated dialog:
To access the help associated with a specific dialog page, press the
F1-key on the keyboard after opening the editor and activating the spe-
cific property page.
Open the Online Help system for browsing manually after a specific
help page:
Open the Online Help system by selecting “Help Topics” in the main
menu bar.
General Description
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2 INTRODUCTION
2.1 General Description
The Particle Tracking module of MIKE 3 Flow Model FM is used for modelling
the transport and determine the fate of dissolved, suspended and sedimented
substances discharged or accidently spilled in lakes, estuaries and coastal
areas or at the open sea.
The particles/substances may be a pollutant of any kind, conservative or non-
conservative, for example suspended sediment particles, inorganic phospho-
rus, nitrogen, bacteria or chemicals.
The pollutant is considered as particles being advected with the surrounding
water body and dispersed as a result of random processes in 3 dimensions.
The particles may settle with a constant settling velocity and settled particles
may be resuspended. A corresponding mass is attached to each particle
which may be reduced during the simulation due to decay.
The following processes may be attached to individual particle classes:
Settling in various detail including flocculation
Erosion
Decay
Moving sources
Wind forcing
Dispersion
The model calculates the path of each particle and outputs the instantaneous
concentrations of individual classes in 2D or 3D depending on the hydrody-
namic input.
There is no feedback to the hydrodynamic module, and therefore the particle
model may with advantage be run in decoupled mode.
2.1.1 Application areas
The Particle Tracking Module can be applied to the study of engineering
problems such as:
Sedimentation
Planning, design and monitoring of outfalls
Risk analysis and accidental spillage
Environmental impact assessment (EIA)
INTRODUCTION
10 Particle Tracking Module FM - © DHI
Monitoring of dredging works
Altri manuali per MIKE 3 Flow Model FM
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