Introduction
I am a naval architect with more than 10 years experience in computational and experimental hydroacoustics. My research interests include CFD and acoustic simulation of marine propellers hydroacoustics turbulence modelling cavitation modelling modelscale measurement of ship noise and vibrations ship noise mitigation tidal turbines. I perform work for a wide range of clients and sectors from Defence to passenger vessels governmental and EU agencies to collaborative research projects.
Expertise areas
Publications
Paper
Quantifying the effect of turbulence intensity on turbulence-interaction noise of an airfoil using scale-resolving simulations
23 Oct 2024
Noise pollution from ships is known to negatively impact wildlife. It is the low-frequency broadband noise component that can travel over large ...
Paper
A procedure for estimating mitigation effect of air injection on ship underwater radiated noise
25 Aug 2024
Increasing evidence exists that underwater radiated noise from ships has a negative impact on marine ecosystems. This has led to initiatives aimed ...
Paper
Ship URN mitigation by air injection: model-scale experiments and application to full-scale measurement data
17 Mar 2024
It is recognised that continuous underwater radiated noise (URN) from shipping needs to be mitigated in order to minimise impact on marine animals. ...
Paper
PIANO: A physics-based semi-empirical source level model for fleet-scale ship URN prediction
17 Mar 2024
Concern is growing about the impacts of continuous underwater radiated noise (URN) from ships on marine fauna. In anticipation of future regulation ...
Paper
Scale Model Measurements of Ship Machinery Noise Mitigation by Air Injection
24 Oct 2023
Underwater radiated noise (URN) from shipping is a main contributor to the rising noise levels in the oceans. There is growing evidence that this ...
Paper
Prediction of underwater radiated noise from propeller cavitation during concept design
17 Oct 2022
There is growing concern about the impact of underwater radiated noise (URN) on marine life. One of the main sources of URN of ships is propeller ...
Paper
The SOUNDS project: towards effective mitigation of underwater noise from shipping in Europe
20 Jun 2022
Continuous underwater noise from shipping has been identified as one of the main contributors to ambient noise levels in the oceans. Notwithstanding ...
Paper
Predicting cavitating propeller noise in off-design conditions using scale-resolving CFD simulations
15 Jun 2022
There is increasing awareness about the harmful impact of underwater radiated noise of shipping on the marine environment, with propeller cavitation ...
Paper
Exciting a cavitating tip vortex with synthetic inflow turbulence - A CFD analysis of vortex kinematics, dynamics and sound generation
15 Jun 2022
Cavitating tip vortices are one of the main contributors to underwater radiated noise (URN). To predict URN and evaluate propeller designs, it is ...
Paper
Broadband Trailing-Edge Noise Predictions using Incompressible Large Eddy Simulations
14 Jun 2022
Incompressible large eddy simulations of the flow over an airfoil at high Reynolds number and low Mach number have been performed, including ...
Paper
The Development of a Partially Averaged Navier–Stokes KSKL Model
1 May 2022
A new partially averaged Navier–Stokes (PANS) closure is derived based on the k -√kL (KSKL) model. The aim of this new model is to incorporate the ...
Paper
Scale-Resolving Simulations of a Circular Cylinder Subjected to Low Mach Number Turbulent Inflow
16 Nov 2021
Inflow turbulence is relevant for many engineering applications relating to noise generation, including aircraft wings, landing gears, and ...
Paper
On the use of synthetic inflow turbulence for scale-resolving simulations of wetted and cavitating flows
15 May 2021
The Delft Twist 11 Hydrofoil is a common test case for investigating the interaction between turbulence and cavitation modelling in computational ...
Paper
Transition and Turbulence Modeling for the Prediction of Cavitating Tip Vortices
1 Jan 2021
This study evaluates the influence of transition and turbulence modeling on the prediction of wetted and cavitating tip vortices for an elliptical ...
Paper
Progress in the prediction and mitigation of propeller cavitation noise and vibrations
16 Nov 2020
Comfort on board passenger vessels and pleasure craft is a primary design consideration. Furthermore, underwater radiated noise from vessels is ...
Paper
Noise measurements of a cavitating propeller in different facilities - Results of the round robin test programme
1 Oct 2020
Mitigation of shipping noise is a topical issue in marine engineering because of the dramatic increase in the levels of anthropogenic underwater ...
Paper
Evaluation of Scale-Resolving Simulations for a Turbulent Channel Flow
20 Jun 2020
Different variable resolution turbulence modelling approaches (Hybrid, Bridging models and LES) are evaluated for turbulent channel flow at Reτ=395, ...
Paper
On the accuracy of partially averaged Navier–Stokes resolution estimates
1 Dec 2019
Partially Averaged Navier–Stokes computations can employ three different approaches for specifying the ratio ofmodelled-to-total turbulence kinetic ...
Paper
Calibration of flush-mounted hydrophones using various signal types
9 Oct 2019
Measurements of cavitation-induced underwater radiated noise (URN) are carried out on a regular basis in MARIN’s Depressurised Wave Basin ...
Paper
Noise measurements of a cavitating propeller in different facilities - Results of the round-robin test programme
9 Oct 2019
Mitigation of shipping noise is a topical issue in marine engineering because of the dramatic increase in the levels of anthropogenic underwater ...
Paper
Acoustic modelling of a propeller subject to non-uniform inflow
26 May 2019
Understanding radiated noise from marine propellers is of interest from the point of view of mitigating sound pollution and avoiding detection. At ...
Paper
A sensitivity analysis of CFD transition modelling in the context of vortex roll-up prediction
13 May 2019
A sensitivity analysis of the transitional flow over a NACA662 − 415 foil and the elliptical Arndt wing is carried out. The SST turbulence model is ...
Paper
Pans simulations - low versus high Reynolds number approach
13 May 2019
Different approaches for specifying the ratio of modelled-to-total dissipation (fε) in the PANS model, based on the k−ω SST ...
Paper
Round Robin test on the underwater radiated noise of a cavitating ship propeller in open water
11 Oct 2017
Due to concerns about its effect on marine life, shipping noise is receiving increasing attention within the maritime industry. The primary noise ...
Paper
Validation of underwater radiated noise predictions for a merchant vessel using full-scale measurements
27 Aug 2017
Underwater radiated noise (URN) was previously primarily of interest in connection with the signature of naval vessels. Recently it has become ...
Magazine
Supporting silent ships - measuring underwater radiated noise from cavitating ship propellers
17 Aug 2017
Reading time 6 minutes
Have you ever had problems talking to someone in a noisy environment such as a busy restaurant? The same happens to marine animals, which use sound ...
Paper
Computational fluid dynamics prediction of marine propeller cavitation including solution verification
12 Jun 2017
This paper analyses the effect of grid refinement on computational fluid dynamics simulations of cavitating propeller flow. Refinement is made both ...
Paper
Improved Modelling Of Sheet Cavitation Dynamics On Delft Twist11 Hydrofoil
15 May 2017
In this paper, unsteady viscous-flow cavitation predictions for a 3D hydrofoil are performed using three different approaches: 1) a pure RANS ...
Paper
Numerical Study Of Cavitation On A NACA0015 Hydrofoil - Solution Verification
15 May 2017
The present paper analyses a series of Computational Fluid Dynamic simulations of the cavitating flow around a two-dimensional NACA0015 foil. The ...
Paper
Comparison of uRANS and BEM-BEM for propeller pressure pulse prediction - E779A propeller in a cavitation tunnel
3 Oct 2016
Studying pressure fluctuations from marine propellers is important when hull fatigue and comfort onboard are of interest. While potential flow ...
Paper
Towards cavitation modelling accounting for transition effects
3 Oct 2016
Cavitation is an important phenomenon which should be taken into account when designing propellers in order to minimise noise radiation, vibration ...
Paper
Influence of grid setup on the prediction of hydrofoil cavitation
3 Oct 2016
The objective of this work is to evaluate the effect of two different grid types when they are used to simulate cavitating flow using an unsteady ...
Paper
Using the FW-H equation for hydroacoustics of propellers
28 Sep 2015
Marine propeller noise and vibration has been studied in order to reduce acoustic signature, improve fatigue life and comfort onboard, and, more ...
Paper
The Potsdam propeller test case in oblique flow - prediction of cavitation patterns and pressure pulses
4 Jun 2015
We report computations performed as part of the Second International Workshop on Cavitating Propeller Performance, using the Potsdam Propeller Test ...
Paper
Marine propeller acoustic modelling - comparing CFD results with an acoustic analogy method
31 May 2015
Propeller noise and vibration is important in the design of ships in order to improve comfort, reduce signature or mitigate environmental impact. ...
Paper
Implementing The Ffowcs Williams-Hawkings Acoustic Analogy Into A Viscous CFD Solver
30 Sep 2014
This paper details the verification of an FW-H equation implementation within the CFD code, ReFRESCO, as well as comparing results obtained with ...
