DHI MIKE 3 Flow Model FM Manuel utilisateur

MIKE 2017

MIKE 3 Flow Model FM

Transport Module

User Guide

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4Transport Module FM - © DHI

CONTENTS

6Transport Module FM - © DHI

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 Application Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4 Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.2 Funningsfjord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.2.1 Purpose of the example . . . . . . . . . . . . . . . . . . . . . . 13

4.2.2 Defining the problem . . . . . . . . . . . . . . . . . . . . . . . 14

4.2.3 Presenting and evaluating the results . . . . . . . . . . . . . . . 15

4.2.4 List of data and specification files . . . . . . . . . . . . . . . . . 17

5 TRANSPORT MODULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.1 Component Specification . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.2 Solution Technique . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.2.1 Remarks and hints . . . . . . . . . . . . . . . . . . . . . . . . 19

5.3 Dispersion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.3.1 Dispersion specification . . . . . . . . . . . . . . . . . . . . . . 20

5.3.2 Recommended values . . . . . . . . . . . . . . . . . . . . . . 21

5.4 Decay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.4.1 Remarks and hints . . . . . . . . . . . . . . . . . . . . . . . . 23

5.5 Precipitation-Evaporation . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.5.1 Recommended values . . . . . . . . . . . . . . . . . . . . . . 24

5.6 Infiltration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.7 Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.7.1 Source specification . . . . . . . . . . . . . . . . . . . . . . . . 25

5.7.2 Remarks and hints . . . . . . . . . . . . . . . . . . . . . . . . 26

5.8 Initial Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

5.9 Boundary Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.9.1 Boundary specification . . . . . . . . . . . . . . . . . . . . . . 27

5.10 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.10.1 Output specification . . . . . . . . . . . . . . . . . . . . . . . . 29

5.10.2 Output items . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

6 LIST OF REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

Purpose

1 About This Guide

1.1 Purpose

The main purpose of this User Guide is to enable you to use, MIKE 3 Flow

Model FM, Transport Module, for applications of transport phenomena in

lakes, estuaries, bays, coastal areas and seas.

The User Guide is complemented by the Online Help.

1.2 Assumed User Background

Although the Transport 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 application.

In this case, “common sense” means a background in coastal hydraulics and

oceanography, 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

modelling of transport phenomena.

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

8Transport 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

“zoom in”, “zoom out” or “recenter”. 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 the 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.

Application Areas

2 Introduction

MIKE 3 Flow Model FM is a new modelling system based on a flexible mesh

approach. The modelling system has been developed for applications within

oceanographic, coastal and estuarine environments.

Figure 2.1 Odense Estuary, Denmark. Computation mesh used in MIKE 3 Flow

Model FM for studying hydrodynamics and ecosystem dynamics.

MIKE 3 Flow Model FM is composed of following modules:

Hydrodynamic Module

Transport Module

MIKE ECO Lab / Oil Spill Module

Mud Transport Module

Particle Tracking Module

Sand Transport Module (2D)

The Hydrodynamic Module is the basic computational component of the

entire MIKE 3 Flow Model FM modelling system providing the hydrodynamic

basis for the other modules.

2.1 Application Areas

The application areas are generally problems where flow and transport phe-

nomena are important with emphasis on oceanographic, coastal and marine

applications, where the flexibility inherited in the unstructured meshes can be

utilized.

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