MixedSystem

MixedSystem(
    reactions=list(),
    discharge,
    inflow_concentration,
    volume,
    parameters=None,
)

Represents a mixed (batch) reactor system without spatial transport.

This class models a well-mixed reactor where species concentrations are uniform throughout the volume. It supports kinetic reactions, inflow/outflow, and user-defined parameters.

Parameters

Name	Type	Description	Default
reactions	list[KineticReaction]	List of kinetic reactions. Default is empty list.	list()
discharge	Callable[[jax.Array], jax.Array] or jax.Array	Function that computes discharge (volumetric flow rate) given time, or a constant discharge value.	required
inflow_concentration	AbstractSpecies	Concentration of species in the inflow.	required
volume	jax.Array	Volume of the mixed reactor.	required
parameters	Any	Additional system parameters. Default is None.	None

Methods

Name	Description
build	Build a configured mixed reactor system.
compute_inflow_outflow	Compute the inflow/outflow contribution to the rate of change of concentrations.

build

MixedSystem.build(
    reactions=None,
    discharge,
    inflow_concentration,
    volume,
    parameters=None,
)

Build a configured mixed reactor system.

This convenience constructor validates input shapes and normalizes scalar inputs before creating a MixedSystem instance.

Parameters

Name	Type	Description	Default
reactions	list[KineticReaction] or None	List of kinetic reactions. Default is None.	None
discharge	Callable[[jax.Array], jax.Array] or jax.Array	Discharge function or scalar discharge value.	required
inflow_concentration	AbstractSpecies	Concentration of species in the inflow.	required
volume	jax.Array	Volume of the mixed reactor.	required
parameters	Any or None	Additional system parameters. Default is None.	None

Returns

Name	Type	Description
	MixedSystem	Configured mixed reactor system.

compute_inflow_outflow

MixedSystem.compute_inflow_outflow(time, state)

Compute the inflow/outflow contribution to the rate of change of concentrations.

Parameters

Name	Type	Description	Default
time	jax.Array	Current simulation time.	required
state	AbstractSpecies	Current species concentrations.	required

Returns

Name	Type	Description
	AbstractSpecies	Rate of change due to inflow/outflow (dc/dt).