Send Frans Hendrik Lafeber a message
Introduction
Frans Hendrik is Teamleader of the Ships Data Science Process Optimisation team. He is also involved in research projects dealing with cavitation propellerinduced pressure fluctuations and underwater radiated noise.
Expertise areas
Publications
Paper
Predicting cavitating propeller noise in off-design conditions using scale-resolving CFD simulations
Jun 15, 2022
There is increasing awareness about the harmful impact of underwater radiated noise of shipping on the marine environment, with propeller cavitation ...
Paper
Progress in the prediction and mitigation of propeller cavitation noise and vibrations
Nov 16, 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
Oct 1, 2020
Mitigation of shipping noise is a topical issue in marine engineering because of the dramatic increase in the levels of anthropogenic underwater ...
Paper
Calibration of flush-mounted hydrophones using various signal types
Oct 9, 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
Oct 9, 2019
Mitigation of shipping noise is a topical issue in marine engineering because of the dramatic increase in the levels of anthropogenic underwater ...
Paper
Round Robin test on the underwater radiated noise of a cavitating ship propeller in open water
Oct 11, 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
Aug 27, 2017
Underwater radiated noise (URN) was previously primarily of interest in connection with the signature of naval vessels. Recently it has become ...
Magazine
Capturing the invisible
Aug 17, 2017
Reading time 6 minutes
High-speed video allows us to capture processes which occur too fast to be visible to the naked eye. This technology is especially valuable for the ...
Magazine
Supporting silent ships - measuring underwater radiated noise from cavitating ship propellers
Aug 17, 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
Validation of computational and experimental prediction methods
Sep 4, 2016
Validation of computational and experimental prediction methods for the underwater radiated noise of a small research vesselModel tests and ...
Magazine
Accurate predictions for noise levels of cavitating propellers now possible
Aug 19, 2016
Reading time 6 minutes
As underwater radiated noise levels in the oceans increases, MARIN has investigated just how much cavitating propellers are to blame.
Paper
Acoustic Reverberation Measurements in the Depressurized Wave Basin
Oct 1, 2015
One method to determine the underwater radiated noise (URN) of the cavitating propeller of a ship is to perform model tests in a cavitation test ...
Paper
Determining Statistical Properties of Quasi-steady Measured Signals
Oct 1, 2015
Quasi-steady measurement methods are becoming more commonplace in MARIN's model test basins for testing the open water performance of propellers, ...
Paper
Computational and Experimental Prediction of Propeller Cavitation Noise
May 21, 2015
Computational and experimental methods for the prediction of underwater-radiated noise due to propeller cavitation as in use at MARIN are discussed ...
Paper
Berth Scour Protection for Modern Vessels
Jun 5, 2014
The increase in vessel size and vessel types along with new propulsion systems has created an increase in the scour action to berth beds. ...
Paper
Systematic Propeller Optimization Using an Unsteady Boundary-Element Method
Oct 25, 2013
A propeller parameterization method and itsapplication to optimize a propeller geometry in an effectivewake field is presented. The parameterization ...
Paper
Underwater Radiated Noise Measurements for a Cruise Ferry
Oct 25, 2013
Inboard noise and underwater radiated noise are becoming more and more important factors during the design of ships. Model tests are often used to ...
Paper
A quasi-steady method for efficiently conducting open water model tests
Sep 17, 2013
Open water tests of propellers, pod units and thruster units are usually performed in a steady manner where the forward velocity and propeller ...
Paper
Underwater radiated noise measurements with a silent towing carriage in the depressurized wave basin
Sep 1, 2013
0Because of the increasing interest in underwater radiated noise levels of ships, noise mitigation measures have been applied to the new secondary ...
Magazine
Silence is golden... especially underwater
Apr 20, 2012
Reading time 3 minutes
MARIN introduces a new silent towing carriage in a bid to further the industry's knowledge about underwater-radiated noise.
Paper
The influence of the wake scale effect on the prediction of hull pressures due to cavitating propellers
Jun 15, 2011
In this paper, the scale effect on the wake field of ship models is shown to be an important cause of prediction inaccuracies of hull pressure ...
Paper
Computation of hull-pressure fluctuations due to non-cavitating propellers
Jun 24, 2009
This paper describes a new coupling procedure of two boundary element methods aimed at computing propellerinduced hull-pressure fluctuations. The ...
Other experts
Christian VeldhuisTeam Leader Ships - Simulation & Development | Senior Project Manager | Research coordinator Zero Emission Shipping
Christian VeldhuisTeam Leader Ships - Simulation & Development | Senior Project Manager | Research coordinator Zero Emission Shipping