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Underwater Radiated Noise Consulting

Advanced acoustic analysis and simulation for marine vessels.

Overview

Underwater radiated noise (URN) from commercial and small vessels has emerged as a critical environmental pollutant affecting marine ecosystems and requiring urgent regulatory and engineering attention. SimBlue Marine offers specialized consulting services in URN reduction using advanced in-house multi-physics tools. Leveraging research facilities at the UBC and high-performance computing via Compute Canada, we deliver tailored multi-physics modeling services for both design and operational stages of vessel life cycles.

Core Capabilities

In-house LES (Large Eddy Simulation) and Schnerr-Sauer-based cavitation models, validated with industry-standard test cases.
Comprehensive modeling of TVC with attention to double-helical vortex modes and associated broadband noise emissions.
Source localization and propagation modeling using Ffowcs Williams–Hawkings (FW-H) acoustic analogy for far-field estimates.
Coupled simulations of structure-fluid dynamics for accurate modeling of propeller-hull vibration and noise pathways.
CFD-acoustic integration for operationally realistic tugboat simulations with ducted propulsors.
Fast simulation models using semi-empirical methods such as Matusiak's and Gilmore's models for practical engineering use.

Our Consulting Services Include

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Research Profile

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Latest Publications on Underwater Noise & Cavitation

"Modeling of Hydroacoustic Noise From Marine Propellers With Tip Vortex Cavitation"
Z. Cheng, S. Kashyap, B. Smoker, G. Burella, R. K. Jaiman, ASME OMAE Conference, 2024
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"A finite element framework for fluid–structure interaction of turbulent cavitating flows with flexible structures"
N. B. Darbhamulla, R. K. Jaiman, Computers & Fluids, 2024
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"A numerical study on the oscillatory dynamics of tip vortex cavitation"
S. Lak, R. Jaiman, Journal of Fluid Mechanics, 2024
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