2.3 Handling of duct
MALAB is impossible to handle distributed
parameter system. The duct is calculated with a
FlowMaster that can treat the partial differential
equation. FlowMaster can simulate the dynamic
characteristic of the duct from design information. The
use frequency of FlowMaster should be a little because
it takes time to calculate ducts. Figure 2 shows the step
response of the duct calculated by FlowMaster.
The step response of the duct calculated by
FlowMaster is identified by identification system. The
transfer function of the duct is obtained. The
identification method explains in chapter 3.4.