CMS-Flow/TideGates: Difference between revisions

From CIRPwiki
Jump to navigation Jump to search
(Created page with "{{DISPLAYTITLE:CMS-Flow Tide Gates (DRAFT)}} {{TOC right}} = Introduction = A tide gate is an opening structure built across a river or a channel in an estuarine system. By preventing saltwater intrusion to farm land and allowing freshwater drainage to the estuary, tide gates are commonly used for flow and flooding control, and salinity and sediment management. Because a tide gate is a significant component of hydrodynamic and sediment transport controls in the coastal...")
 
Line 1: Line 1:
UNDER CONSTRUCTION
{{DISPLAYTITLE:CMS-Flow Tide Gates (DRAFT)}}
{{DISPLAYTITLE:CMS-Flow Tide Gates (DRAFT)}}
{{TOC right}}
{{TOC right}}
Line 51: Line 53:
{| class="wikitable"
{| class="wikitable"
!Cardname
!Cardname
!Indent 2
!Indentation
spaces?
spaces
!Number
!Type of value written
of vals
!Type of value
written
!Dependent on
!Dependent on
!Notes 
!Notes
|-
|TIDE_GATE_STRUCT_BEGIN
|0||N/A
|
|
|-
|-
|CULVERT_V2_BEGIN ||NO ||0 ||N/A || ||
|  CELL_IDS||2|| <int>  <multiple int>
|
|Total number of cells (n) followed by a
list of all cell ids (from 1 to n).
|-
|-
|  CELLS ||YES ||2 ||<int>  <int> || ||Bay, then Sea
|DISTRIBUTION_COEFF|| 2||<real>
|
|
|-
|-
|  TYPE ||YES ||1 ||‘CIRCLE’ or ‘BOX’ || ||
|  ORIENTATION||2||1, 2, 3, or 4
|
|Direction of Sea side:
1= North, 2= East, 3= South, 4= West
|-
|-
|  FLAP_GATE ||YES ||1 ||‘ON’ or ‘OFF’ || ||
|  TYPE||2||1 or 2
|
|1= Sharp-crested, 2=Broad-crested
|-
|-
|  RADIUS ||YES ||1 ||<real> ||TYPE ==  ‘CIRCLE’ ||
|  FLOW_COEFF_FROM_BAY|| 2||<real>
|
|
|-
|-
|  WIDTH ||YES ||1 ||<real> ||TYPE == ‘BOX’ ||
|   FLOW_COEFF_FROM_SEA||2 ||<real>
|
|
|-
|-
|  HEIGHT ||YES ||1 ||<real> ||TYPE == ‘BOX’ ||
|OPENING_HEIGHT
|2
|<real>
|
|How large the opening for the gate is.
|-
|-
|  LENGTH ||YES ||1 ||<real> || ||
|BOTTOM_ELEVATION|| 2||<real>
|
|Positive is upward
|-
|-
|  DARCY_FRICTION_FACTOR ||YES ||1 ||<real> || ||
|METHOD
| 2
|1 or 2
|
|1= Approach 1, 2= Approach 2 (see literature)
|-
|-
|  MANNINGS_COEFFICIENT ||YES ||1 ||<real> || ||
| SCHEDULE_BEGIN||2 ||N/A
|
|
|-
|-
|  INVERT_ELEVATIONS ||YES ||2 ||<real>  <real> || ||Bay, then Sea
|OPERATION_TYPE
|4
|'REG',
'DES',
'EBB',
'UCG'
|
|'REG' - regular time interval
'DES' - designated time periods
'EBB' - open gate for ebb tide, close for flood
'UCG' - uncontrolled gate
|-
|-
|  ENTRY_HEAD_LOSS_BAY ||YES ||1 ||<real> || ||
|NUM_CONTROL_ELEMENT
|4
|<int>
|
|'REG' - always 3
'DES' - user-specified
'EBB' - always 0
'UCG' - always 0
|-
|-
|  ENTRY_HEAD_LOSS_SEA ||YES ||1 ||<real> || ||
|REG_START_TIME
|4
|<int>
|Operation type == 'REG'
|Start time (hour)
|-
|-
|  EXIT_HEAD_LOSS_BAY ||YES ||1 ||<real> || ||
|REG_OPEN_FREQUENCY
|4
|<int>
|Operation type == 'REG'
|Opening frequency (hour)
|-
|-
|  EXIT_HEAD_LOSS_SEA ||YES ||1 ||<real> || ||
|REG_OPEN_DURATION
|4
|<int>
|Operation type == 'REG'
|Open duration (hour)
|-
|-
|  OUTFLOW_ANGLES ||YES ||2 ||<real>  <real> || ||Bay, then Sea
|DES_START_TIME
|4
|
|
|
|-
|-
|CULVERT_V2_END ||NO ||0 ||N/A || ||
|
|
|
|
|
|}
|}
An example culvert block is shown below:
An example culvert block is shown below:

Revision as of 15:49, 26 September 2024

UNDER CONSTRUCTION



Introduction

A tide gate is an opening structure built across a river or a channel in an estuarine system. By preventing saltwater intrusion to farm land and allowing freshwater drainage to the estuary, tide gates are commonly used for flow and flooding control, and salinity and sediment management. Because a tide gate is a significant component of hydrodynamic and sediment transport controls in the coastal zone, it is important to incorporate the structure and to simulate its effect in the CMS.

Usage of Tide Gages for CMS in the SMS

Early SMS versions (< 13.4)

Previous documentation (Link given below) described the formulation and implementation of Tide Gates in CMS, detailing input requirements for SMS versions up to 11.2. This implementation required hand-manipulation of the CMS-Flow parameter files to add in lists of cells and option values.

Future SMS versions (13.4.x)

SMS 13.4 CMS-Flow model coverages.
SMS 13.4 CMS-Flow model coverages.

A "Structures" coverage has been added beneath the CMS-Flow model option in SMS 13.4 and later. This one coverage will handle Tide Gates as well as three other types: Rubble Mounds, Weirs, and Culverts.

  • Tide Gates are added to this coverage with the placement of Feature Arcs.
  • The "Structures" coverage will need to be applied to the CMS Simulation in order to export the appropriate cards to the parameter file.

Values needed by the CMS for each Tide Gate are listed in the table below. If there is a user-definable option in the dialog for the user to enter a value, the word 'Dialog' is shown in column 2, otherwise the words 'No dialog' are written in column 2.

List of tide gate structure parameters
Number of Cells No dialog
Cell IDs No dialog
Distribution Coefficient Dialog
Orientation of Tide Gate Dialog
Type of Weir Dialog
Flow Coefficient Bay to Sea Dialog
Flow Coefficient Sea to Bay Dialog
Gate Opening Height Dialog
Bottom Elevation of Tide Gate Dialog
Calculation Method Dialog

SMS will handle the assignment of the appropriate values for Number of Cells and Cell IDs.

CMS-Flow specific information

The parameters/selections for each Tide Gate feature arc will be exported to the ‘.cmcards’ file in the form of a block of values.  This implementation has been confirmed to work with CMS 5.3.12 and later.

  • The Tide gate parameter cards needed for each gate are added to a structure block with a corresponding BEGIN/END statement for each gate are listed in the table below.
  • For readability and to be consistent with other cards in the .cmcards file, all values should start in column 36 and 3 spaces written between each value per line if more than one.
Cardname Indentation

spaces

Type of value written Dependent on Notes
TIDE_GATE_STRUCT_BEGIN 0 N/A
  CELL_IDS 2 <int> <multiple int> Total number of cells (n) followed by a

list of all cell ids (from 1 to n).

DISTRIBUTION_COEFF 2 <real>
  ORIENTATION 2 1, 2, 3, or 4 Direction of Sea side:

1= North, 2= East, 3= South, 4= West

  TYPE 2 1 or 2 1= Sharp-crested, 2=Broad-crested
  FLOW_COEFF_FROM_BAY 2 <real>
  FLOW_COEFF_FROM_SEA 2 <real>
OPENING_HEIGHT 2 <real> How large the opening for the gate is.
BOTTOM_ELEVATION 2 <real> Positive is upward
METHOD 2 1 or 2 1= Approach 1, 2= Approach 2 (see literature)
SCHEDULE_BEGIN 2 N/A
OPERATION_TYPE 4 'REG',

'DES', 'EBB', 'UCG'

'REG' - regular time interval

'DES' - designated time periods 'EBB' - open gate for ebb tide, close for flood 'UCG' - uncontrolled gate

NUM_CONTROL_ELEMENT 4 <int> 'REG' - always 3

'DES' - user-specified 'EBB' - always 0 'UCG' - always 0

REG_START_TIME 4 <int> Operation type == 'REG' Start time (hour)
REG_OPEN_FREQUENCY 4 <int> Operation type == 'REG' Opening frequency (hour)
REG_OPEN_DURATION 4 <int> Operation type == 'REG' Open duration (hour)
DES_START_TIME 4

An example culvert block is shown below: 

CULVERT_V2_BEGIN
  CELLS                             14334   14348
  TYPE                              CIRCLE
  FLAP_GATE                         OFF
  RADIUS                            0.9
  LENGTH                            30.3
  DARCY_FRICTION_FACTOR             0.04
  MANNINGS_COEFFICIENT              0.03
  INVERT_ELEVATIONS                 -1   -1
  ENTRY_HEAD_LOSS_BAY               0.4   0.4
  ENTRY_HEAD_LOSS_SEA               0.4   0.4
  EXIT_HEAD_LOSS_BAY                0.6   0.6
  EXIT_HEAD_LOSS_SEA                0.6   0.6
  OUTFLOW_ANGLES                    180.0   0.0
CULVERT_V2_END  


Last update 9/25/2024
Back to CMS-Flow Structures page
Back to Documentation Portal

Retrieved from "https://cirpwiki.info/index.php?title=CMS-Flow/TideGates&oldid=14720"