Theory
Every perforate and packing enters the system as a complex coefficient times a real matrix; the power it absorbs follows from the solved pressure. The total over all absorbers equals the incident power minus the power leaving through all ports. Details and the check: Additional acoustic results: receivers, section power, dissipation, flow effect.
Equations
(1)
| where | meaning | unit |
|---|---|---|
| Power absorbed by perforate or packing term | W | |
| Coefficient of the term | various | |
| Real matrix of the term | various |
Default and rule
- Default
- off
- Rule
Off.
Valid range on | off
Cost
About 2 % of the sweep.
Absorbers
Without perforates or packing there is nothing to report and no file is written.