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Flow from Left
These methods control how flows into the aquifer are represented from the Left direction.
* No Flow
No flows enter the Aquifer from the left. This is the default method in this category
* Compute Flow using Heads
This method computes the Flow from Left based on the difference in previous computational timestep heads and the conductance.
Slots Specific to This Method
 Flow from Left
Type: Series
Units: Flow
Description: The flow that occurs into this Aquifer from the left object, usually another Aquifer
Information: For this method, the slot will have values only at the computational timestep. Positive values indicate flow into this Aquifer.
I/O: Output only
 Conductance Left
Type: Scalar
Units: AreaPerTime
Description: The conductance from the left object to this Aquifer.
Information: The Conductance Left must be the same as the linked object’s Conductance Right.
I/O: Required Input
 Head Left Previous
Type: Series
Units: Length
Description: The head of the left object from the previous computational timestep.
Information: This slot will have values only at the computational timestep.
I/O: Output only
Method Details 
At run start the object will check if:
If so, an error is issued at run start. These two slots must be the same or water will be lost or gained between the two objects.
This method computes the flow into the Aquifer from the left:
Note:  This equation is applied at the computational timestep.
Revised: 08/02/2021