# Difference between revisions of "Compartment model"

A simple two-compartment model is shown to the right. We assume that there is perfect mixing in each compartment and that the transport between the compartments is driven by concentration differences. We further assume that a drug with concentration  is injected in compartment 1 at a volume flow rate of  and that the concentration in compartment 2 is the output. Let  and  be the concentrations of the drug in the compartments and let  and  be the volumes of the compartments.
where represents flow rate between the compartments and represents the flow rate out of compartment 1 that is not going to compartment 2. Introducing the variables , ,  and  and using matrix notation, the model can be written as
A representative set of parameter values are , ,  and .