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Objects and Methods : Reach : User Methods : Min Diversion Bypass
Min Diversion Bypass
The Min Diversion Bypass methods are only available when Available Flow Based Diversion is selected in the Diversion from Reach method category.
Methods in this category are used to specify the minimum amount of water that should remain in the reach after diversion. After the diversion, however, the reach may lose additional water to seepage or gain water from return flow.
* None
This is the default method. It performs no calculations.
There are no slots specific to this method.
* Input Min Bypass
This method is used when you want to input the minimum amount of water that bypasses the diversion point.
Slots Specific to This Method
 Minimum Diversion Bypass
Type: Series
Units: FLOW
Description: minimum amount of water remaining after diversion
Information:  
I/O: Optional; not used if not input
Method Details  
If Minimum Diversion Bypass is input, it used to calculate Available For Diversion as follows:
    
* Monthly Min Bypass Values
This method is used when the Minimum Diversion Bypass is dependent upon the month.
Slots Specific to This Method
 Minimum Bypass Values
Type: Table
Units: FLOW
Description: a table of minimum diversion bypass values for each month
Information: One value is required for each month.
I/O: Required input
 Minimum Diversion Bypass
Type: Series
Units: FLOW
Description: minimum amount of water remaining after diversion
Information: Calculated from the Minimum Bypass Values table
I/O: Output only
Method Details  
Minimum Diversion Bypass is set with a value from the Minimum Bypass Values table for the current month in the simulation. Available For Diversion is then calculated as follows:
    
* Monthly Min Bypass Coefficients
This method is used to compute Minimum Diversion Bypass from a coefficient that is dependent on the month.
Slots Specific to This Method
 Minimum Bypass Coefficients
Type: Table
Units: NONE
Description: a table of bypass coefficients for each month
Information:  
I/O: Required input
 Minimum Diversion Bypass
Type: Series
Units: FLOW
Description: minimum amount of water remaining after diversion
Information:  
I/O: Output only
Method Details 
Minimum Diversion Bypass is calculated with a value from the Minimum Bypass Coefficients table for the current month in the simulation by the following equation:
    
Available For Diversion is then calculated as follows:
    
* Periodic Min Bypass
This method computed the Minimum Diversion Bypass as a function of date/season as defined in a periodic slot.
Slots Specific to This Method
 Periodic Minimum Bypass
Type: Periodic Slot
Units: flow
Description: The minimum diversion bypass as a function of season/date
Information: The current date is used to look up the Minimum Diversion Bypass from this slot.
I/O: Required input
 Minimum Diversion Bypass
Type: Series
Units: FLOW
Description: Minimum amount of water remaining after diversion
Information: This value is determined from the Periodic Minimum Bypass slot.
I/O: Output only
Revised: 01/05/2024