building a model step by step. mike 11 requires information on : catchment data (surface- root- and...
TRANSCRIPT
Building a model step by step
MIKE 11 requires information on :
• Catchment data (Surface- root- and groundwater zones).
• River Network i.e. Branches; Nodes; Loops; Connections
• Topographical Data i.e. Cross-sections and Flood plain data
• Structures (weirs, culverts, bridges, operational gates)
• Boundary conditions (location and Type)
• Model specific parameters (Bed resistance, Wave approx.)
Building a model step by step
Data Editors
Simulation Editor
Cross Section Editor
Parameter Editors
Network Editor
Time Series Editor
Boundary Editor
MIKE 11
Simulation Editor
Two main features:
• Define simulation specifications- Simulation-type, -period, -time-step- Input- and Result-filenames
• Integrate Editor information- Enables insert, edit and/or modify
data from all Editors via the Network
editor’s Graphical View.
Simulation-model (HD/AD/WQ/ST/RR)?
Unsteady or Quasi?
Which Input-files?
Result-filename?
Period and time-step?
Initial conditions?
Editor-file: *.sim11
MIKE 11
Simulation Editor
Simulation-model (HD/AD/WQ/ST/RR)?
Unsteady or Quasi?
Which Input-files?
Result-filename?
Period and time-step?
Initial conditions?
Editor-file: *.sim11
MIKE 11
Simulation Editor
Simulation-model (HD/AD/WQ/ST/RR)?
Unsteady or Quasi?
Input-files?
Period and Time step
Initial Conditions
Result-filename?
Editor-file: *.sim11
MIKE 11
Simulation Editor
Simulation-model (HD/AD/WQ/ST/RR)?
Unsteady or Quasi?
Input-files?
Period and Time step
Initial Conditions
Result-filename?
Storing Frequency
Editor-file: *.sim11
MIKE 11
Simulation Editor
Simulation-model (HD/AD/WQ/ST/RR)?
Unsteady or Quasi?
Input-files?
Period and Time step
Initial Conditions
Result-filename?
Storing Frequency
Editor-file: *.sim11
MIKE 11
Simulation Editor
Validation of •Run parameters•HD Parameters
MIKE 11
MIKE 11
Simulation Editor
Cross Section Editor
Parameter Editors
Network Editor
Time Series Editor
Boundary Editor
Network Editor
Network Editor
Editor-file: *.nwk11
Editing of data describing the River Network.
Definition of River Setup :
• Digitized River Network
• River Branches
• Hydraulic Structures- Weirs,- Culverts,- Regulating,- Controllable Weir/Gate- Dambreak
• Hydrological Catchments
Indsæt dump fra nwk-editor med signatur forklaring (h, Q, digi-points)
MIKE 11
Network Editor
Graphical View
MIKE 11
Network Editor
Definition of River Branches:• Topo ID• River Name• Upstream Chainage [m]• Downstream Chainage [m]• Branch type (Regular or Link channel)• Upstream connection to other Branches• Downstream connection to other Branches• Maximum x
MIKE 11
Network Editor
Tabular View
MIKE 11
Network Editor
Setup of Channel Network
0.000
10.400
15.000
25.000
15.000
3.000River A0.000 - 10.400
River C15.000 - 25.000
River B3.000 - 15.000
Name Upstream Downstream Upstream Downstream End End Connection Connection
River A 0.000 10.400 - River C 15.000River B 3.000 15.000 - River C 15.000River C 15.000 25.000 River B 15.000 -
MIKE 11
MIKE 11, Slide no : 16
Network Editor
Grid-point spacing in River Branch
Chainage [m] : 20.000 28.000 32.000 40.000
Maximum dx = 5.000 m
Maximum dx = 3.000 m
Maximum dx > 8.000 m
MIKE 11
H-point with cross section from DatabaseH-point with interpolated Cross SectionQ-point
MIKE 11
Simulation Editor
Cross Section Editor
Parameter Editors
Network Editor
Time Series Editor
Boundary Editor
Cross Section Editor
Cross Section Editor
Editor-file:*.xns11
Editing of Topographical data.
Editor file / Database includes two data-set:
• Raw data- Cross Section survey data- Set of (x,z) data.
• Processed data- Table of hydraulic parameters, f(h), for each
Section- Calculated from Raw Data or entered manually- Tables used in simulation => Processed Data required in all sections
MIKE 11
Raw Data:
Each Entry Defined by:• River Name• Topo ID• Chainage [m]
Raw Data editor includes:• Tree View listing all sections• Tabular View of x,z data• Graphical View presenting actual section
MIKE 11Cross Section Editor
MIKE 11Cross Section EditorRaw data
Raw Data Parameters
Raw Data:
Section Type: Open / Closed
Radius Type: Resistance RadiusHydraulic Radius, Effective areaHydraulic Radius, Total area
Datum: Reference level
Divide Section:Divide in River and Flood Plain channel /Active and passive section for Morphological update
Level of Divide: Level of divide for River and Flood Plain Channel
Resistance: ‘Relative Resistance’.Transverse adjustment of bed resistance.
Flood Plain River channel
M = 10 M = 30
Datum
MIKE 11
Raw Data Parameters MIKE 11
Hydraulic Radius versus Resistance Radius
Different assumptions on the distribution of bottom shear stress
Resistance Radius
Hydraulic Radius
Raw Data Editor MIKE 11
Resistance Radius vs. Hydraulic Radius
B
dbyyA
R*
0
1
Resistance Radius:
Hydraulic Radius:
P
ARH
Smooth transition from deep to shallow
Includes more accurate side wall effects in deep narrow channels
yA
B
P
Processed Data
Processed Data:
Each Entry includes:• Area, Hydr.Radius, Width & Conveyance
calculated for different Water Levels• Additional Flooded Area (optional)• Resistance factor (optional)
Processed Data editor includes:• Tree View listing all sections• Tabular View of hydraulic parameters• Graphical View of selected parameter
MIKE 11
Editing Processed Data MIKE 11
Boundary Editor
Simulation Editor
Cross Section Editor
Parameter Editors
Network Editor
Time Series Editor
Boundary Editor
MIKE 11
Boundary Editor
Editor-file: *.bnd11
Editing of Boundary conditions:
Boundary condition defined by:• River Name• Chainage• Boundary type• Time series file-name• Time series Item
Q
t t
t
Q
Wl
MIKE 11
Boundary Editor
HD
MIKE 11
MIKE 11
Simulation Editor
Cross Section Editor
Parameter Editors
Network Editor
Time Series Editor
Boundary Editor
Time Series Editor
Time Series Editor
Editor-file: *.dfs0
Edit and Storing of Time Series Events data:
Time Series editor includes:• Tabular View of event(s)• Graphical View of event(s)
Time Series Events identified by:• Name, Type (water level, discharge etc.) and Unit• Time series axis type (equidistant / non-equidistant)
(calender / relative)• Start-time, Time-step, no of Time-steps
MIKE 11
Time Series Editor MIKE 11
HD Parameter Editor
Simulation Editor
Cross Section Editor
Parameter Editors
Network Editor
Time Series Editor
Boundary Editor
MIKE 11
HD Parameter Editor
Editor-file: *.hd11
Editing of HD specific parameters:
• Initial values of H and Q
• Bed resistance Values
• Wave approximation
• ‘Engine-specific’ variables.
MIKE 11
HD Parameter Editor
Indsæt cut af Bed resistance dialog
MIKE 11
HD Parameter Editor
Global and Local Variables:
Global Value:
Local Values:
M = 30
M = 30
M = 25
M = 20
0.0 5000 10000 15000 20000 Distance [m]
Man
ning
’s M
MIKE 11
HD Parameter Editor
Indsæt cut af Default Values dialog
MIKE 11
HD Parameter Editor
Indsæt cut af Additional output dialog
MIKE 11
Setting up a River System
Setting up a River System in MIKE 11 requires:
• Topographical Data (.xns11)
• Digitization of River Network (.nwk11)
• Physical description (.nwk11)
(branch-connections, structures etc.)
• Boundary conditions (.bnd11)(measured hydro-metric data, time series)
(.dfs0)
• Model specific parameters (Parameter Editor-files) e.g.: Bed resistance, Wave approximation
(.hd11)Dispersion, Decay
(.ad11)Surface, Root zone, Groundwater descr.
(.rr11)
MIKE 11
Setting up boundary Conditions MIKE 11
Boundary conditions applied at external boundaries
Discharge, Q : Upstream of RiverLateral InflowClosed End (Q=0)Discharge ControlPump
Water Level, h : Downstream River boundaryOutlet in Sea (tide, wind)Water level control
Q/h Boundary : Downstream Boundary (Never upstr.)Critical Outflow from Model
Q
h or Q/h
In general, Boundaries should be located where key investigation area is not directly affected by boundary condition.
Data
Reliable Data required: ‘GARBAGE IN = GARBAGE OUT’
MIKE 11
Modeling Rule No. 1 :
Model results are not more accurate than the accuracy of the underlying data