Quantification of the cavitating propulsor-induced underwater sound pressure in the far-field as well as on the ship hull based on turbulence resolved flow simulations and acoustic analogy

Kimmerl, Julian

doi:10.15480/882.9643

Quantification of the cavitating propulsor-induced underwater sound pressure in the far-field as well as on the ship hull based on turbulence resolved flow simulations and acoustic analogy

Citation Link: https://doi.org/10.15480/882.9643

Publikationstyp

Doctoral Thesis

Date Issued

2024

Sprache

English

Author(s)

Kimmerl, Julian

Advisor

Abdel-Maksoud, Moustafa

Referee

Krüger, Stefan

Title Granting Institution

Hamburg Technische Universität

Place of Title Granting Institution

Hamburg

Examination Date

2024-05-13

Institute

Fluiddynamik und Schiffstheorie M-8

TORE-DOI

10.15480/882.9643

TORE-URI

https://hdl.handle.net/11420/47737

Citation

Technische Universität Hamburg (2024)

The simulation of underwater radiated noise is previously studied with well-defined single acoustic sources or propellers in open water condition. In this work the finite volume method is explored to capture the acoustic sources by resolving turbulent length scales, specifically in the propeller slipstream, applying a Volume-of-Fluid two-phase treatment with the OpenFOAM Schnerr-Sauer model and combining it with the permeable surface Ffowcs-Williams-Hawkings acoustic analogy. Beginning with advanced test cases the noise of propulsor-hull combinations is evaluated and leads to good agreement with measurements.