Evaluation of Underwater Sound Propagation of a Catamaran with Cavitating Propellers

Volume
1
Start Page
403
End Page
410
Citation
International Symposium on Marine Propulsors (smp 2019)
Contribution to Conference
6th International Symposium on Marine Propulsors (smp 2019)  
Publisher Link
http://www.marinepropulsors.com/proceedings/2019/TA3-4.pdf
Publisher
National Research Council of Italy, Institute of Marine Engineering (CNR.INM)
The present article deals with the prediction of the underwater noise induced by ship propellers under consideration of sheet cavitation on the propeller blades. The calculation method is a hybrid approach combining a boundary element calculation method with the Ffowcs-Williams Hawkings equation. The capabilities of the method are demonstrated by simulating multiple operation states of the Newcastle University’s catamaran research vessel, the “Princess Royal”. The numeric results are compared to full-scale measurements.
Subjects
Boundary element method
Propeller noise
Sheet cavitation
Ffowcs-Wiliams Hawkings
FWH