Variables

Sets the start value for a given variable.

Sets the start value for a given variable.

Given a variable that is indexed by component IDs, builds the standard solution structure.

Instantiates demand flow variables for all dispatchable demands in the network, i.e., demand[i] for i in dispatchable_demand.

Creates binary variables for all design pipes in the network, i.e., z_des_pipe[a] for a in des_pipe, where one denotes that the pipe is selected within the design, and zero denotes that the pipe is not selected.

Creates bounded (by default) or unbounded total hydraulic head (or head) variables for all nodes in the network, i.e., h[i] for i in node.

Creates binary variables for all pumps in the network, i.e., z_pump[a] for a in pump, where one denotes that the pump is currently operating (i.e., on), and zero indicates that the pump is not operating (i.e., off).

Creates binary variables for all regulators in the network, i.e., z_regulator[a] for a in regulator, where one denotes that the pressure reducing is currently open and zero otherwise.

Instantiates outgoing flow variables for all reservoirs in the network, i.e., q_reservoir[i] for i in reservoir. Note that these variables are always nonnegative, since for each reservoir, there will never be incoming flow.

Creates outgoing flow variables for all tanks in the network, i.e., q_tank[i] for i in tank. Note that, unlike reservoirs, tanks can have inflow.

Creates binary variables for valves in the network, i.e., z_valve[a] for a in valve, where one denotes that the valve is open and zero denotes that the valve is closed.

Create flow-related variables common to all directed flow models for edge-type components.

Create flow-related variables common to all directed flow models for node-connecting components.

Creates flow variables for LA formulations (q, lambda, x_pw).

Create flow-related variables common to all directed flow models for node-connecting components.