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Bas Buchner

President

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Publications
Paper
Innovative crash barrier concepts to prevent ship collisions with wind turbines

11 Jun 2023

The rapid development of offshore wind farms coincides with a growing amount of ship movements. This combination puts pressure on maritime safety, ...
Paper
Non-Linear Wave Run-Up Along the Side of Sailing Ships Causing Green Water on Deck - Experiments and Deterministic Calculation

1 Aug 2020

Experiments with a flat plate in oblique waves at different speeds, wave conditions, headings and drift speed were done to evaluate non-linear wave ...
Magazine
Better Ships, blue Oceans!

15 Dec 2017

Reading time 9 minutes

The next few years are essential for the future of the maritime sector and MARIN. We are facing the challenge of clean (zero emission) transport ...
Paper
The Dynamic Response Of An Offshore Wind Turbine With Realistic Flexibility To Breaking Wave Impact

19 Jun 2011

The effects of operational loads and wind loads on offshoremonopile wind turbines are well understood. For most sites,however, the water depth is ...
Magazine
World's deepest TLP becomes MARIN's 9,000th test model!

26 Aug 2010

Reading time 3 minutes

In Spring 2010, the world deepest TLP (5,187 ft) was tested at MARIN for Chevron U.S.A. Inc. and FloaTEC. The 'Big Foot' TLP represents MARIN's ...
Paper
Pilot Model Tests on the ‘Green Water Concept’ for Wave Energy Conversion with Model Scale Power Take Off Modelling

1 Jun 2010

This paper presents the pilot model tests on the ‘Green Water Concept’ for wave energy conversion. These tests also included the initial modelling ...
Paper
Model Tests and Simulations on a Wave Energy Converter Based on Inverse Offshore Engineering

1 May 2010

This paper presents the initial simulations and model tests into the 'Green Water Concept' for wave energy conversion. Instead of reducing ...
Paper
Simulations and Model Testing on a Wave Engergy Converter based on Inverse Offshore Engineering

1 Jan 2010

For more than 75 years, the Maritime Research Institute Netherlands (MARIN) has been contributing to the development of safe and economic ships and ...
Magazine
New Renewable ENergy Team (RENT) launches

12 Aug 2009

Reading time 3 minutes

MARIN has recently started a special Renewable ENergy Team (RENT) aiming to assist clients interested in the offshore renewable energy field.
Magazine
Green energy from green water

12 Aug 2009

Reading time 6 minutes

Wave energy represents a significant untapped energy source. As Professor Jo Hermans from the University of Leiden says: 'Worldwide the economically ...
Paper
‘Inverse’ Concept - Wave Energy Generation by Motion and Green Water Maximisation

1 Jun 2009

This paper presents the initial investigations into the ‘Inverse’ concept for wave energy conversion, based on the maximisation of motions and green ...
Paper
Wave Slamming on External Turrets of FPSOs

1 Jun 2009

The paper discussed the possible slamming loads on the underside of the (chaintable of) external turret moored F(P)SOs. For this problem of turret ...
Paper
Evaluating the loading and structural response of an offshore platform using integrated large and small scale testing combined with diffraction and finite element

1 Jun 2009

Evaluating the loading and structural response of an offshore platform using integrated large and small scale testing combined with diffraction and ...
Magazine
Multiple scales give maximum insight

24 Apr 2009

Reading time 6 minutes

In the process of evaluating an offshore structure during its design or while in operation, model tests, simulations and offshore (full-scale) ...
Magazine
Port of Gijón extension project gets the MARIN touch

29 Jan 2009

Reading time 6 minutes

Gijón Port Authority (APG) is carrying out a large extension to the port, including a new basin seawards of the present port facilities. But the ...
Paper
Current Modeling Experience in an Offshore Basin

15 Jun 2008

A reliable current simulation is vital to achieve the objectives of model testing. In the present paper the development and testing of the current ...
Magazine
Offshore engineers enthusiastic about applied hydrodynamics course

1 Apr 2008

Reading time 3 minutes

In the last 12 months almost 100 people have followed MARIN's wellknown Applied Offshore Hydrodynamics Course. In addition to the traditional spring ...
Magazine
MARIN and OCEANICA start partnership

1 Apr 2008

Reading time 2 minutes

On September 17, 2007 MARIN President Arne Hubregtse and OCEÂNICA Director Marcos Cueva signed an agreement which now makes OCEÂNICA MARIN's ...
Paper
The Spatial Analyis of an Extreme Wave in a Model Basin

10 Jun 2007

As a pilot study into the understanding of the occurrence of extreme waves, the spatial development of an extreme wave (Ac/Hs=1.59) in a model basin ...
Paper
Extreme Wave Effects on Deepwater Floating Structures

1 May 2007

Extreme waves can lead to damage to floating offshore structure as a result of airgap problems, greenwater on the deck or slamming to the hull. As ...
Magazine
Extreme waves in focus

1 Apr 2007

Reading time 9 minutes

Hurricanes Ivan, Katrina and Rita in the Gulf of Mexico confirmed the importance of extreme waves for all types of offshore structures. They can ...
Magazine
Arjan Voogt, MARIN's new man in Houston

1 Apr 2007

Reading time 3 minutes

Last year, with Dr Johan Wichers retirement approaching, MARIN re-evaluated its services in the Houston-market and asked Arjan Voogt to take up the ...
Magazine
A new way of sharing hydrodynamic software

1 Apr 2007

Reading time 6 minutes

Usually, hydrodynamic software is licensed for a significant amount of money, together with an additional annual maintenance and support fee. But ...
Magazine
Where do we go from here?

1 Feb 2007

Reading time 6 minutes

Since the beginning of the offshore industry MARIN's research, tool development and Joint Industry Projects, have initiated and followed the trends ...
Paper
Extreme Wave Effects on Deep Water TLPs - Lessons Learned from the Snorre A Model Tests

1 Nov 2006

In the last few years there has been an increasing focus within the shipping and offshore industry on extreme wave events and abnormal wave ...
Paper
The Motions of a Ship on a Sloped Seabed

4 Jun 2006

In standard diffraction theory it is assumed that the water depth is constant and that the seabed is infinitely large. To account for a local ...
Paper
The Use of a Volume Of Fluid (VOF) Method Coupled to a Time Domain Motion Simulation to Calculate the Motions of a Subsea Structure Lifted Through The Splash Zone

4 Jun 2006

Existing simulation methods are not able to determine in detail the wave loads on and the motions of a complex subsea structure when it is passing ...
Magazine
JIPs focus on Offshore LNG

1 Apr 2006

Reading time 3 minutes

With the development of offshore LNG terminals having the full attention of the offshore industry, MARIN too, is keen to keep abreast of ...
Magazine
West of Africa FPSOs - a straight course to a reliable mooring

1 Apr 2006

Reading time 3 minutes

Last year, two major West of Africa FPSO projects focused on the same two issues: a safe journey to the field and a reliable mooring once arrived ...
Magazine
UMS - MARIN's special underwater eye

1 Apr 2006

Reading time 3 minutes

For areas with an overall benign environment but with occasional extreme conditions, disconnectable turret buoy systems are a good option to moor ...
Paper
A New Method to Optimise the Operability of Deepwater Offloading Operations

8 Nov 2005

In 2005 the Joint Industry Project 'Offloading Operability will be completed. Within this project, a tool is developed for the simulation of ...
Paper
Viscous Damping of Vessels Moored in Close Proximity of Another Object

19 Jun 2005

The focus of the hydrodynamic research has been on deep water applications during the last decade. Recent experience with mooring in close proximity ...
Paper
A Volume-of-Fluid based simulation method for wave impact problems

10 Jun 2005

In this paper, some aspects of water impact and green water loading are considered by numerically investigating a dambreak problem and water entry ...
Magazine
Tug behaviour in waves

1 Apr 2005

Reading time 6 minutes

With the uptime levels of new offshore terminals now expected to be nearly 100%, there has been plenty of research into dedicated mooring and ...
Paper
The Behaviour of Tugs in Waves Assisting LNG Carriers During Berthing Along Offshore LNG Terminals

1 Jan 2005

For future offshore LNG terminals tugs are planned to assist LNG carriers during berthing and offloading operations. A model test study was carried ...
Paper
Simulation of the Dynamic Motions of Complex Sub-Sea structures in the Splash Zone During Deepwater Installations

1 Jan 2005

Existing simulation methods are not able to determine in detail the wave loads on and the motions of a complex subsea structure when it is passing ...
Paper
The Numerical Simulation of Green Water Loading Including Vessel Motions and the Incoming Wave Field

1 Jan 2005

This paper presents results from simulation of green water loading including vessel motions. The simulation is performed through a domain ...
Paper
Wave Impacts on Moored Ship-Type Offshore Structures due to Steep Fronted Waves

1 Jan 2005

Can wave impacts only be identified and characterized by the relative wave velocities in front of the bow? The results presented in this paper show ...
Magazine
Development of new wave impact load tool

1 Aug 2004

Reading time 3 minutes

During the FPSO week held in Singapore in early April the new ComFLOW-2 project officially kicked off. With a budget of around E1.5m, this JIP is ...
Magazine
SAFE-FLOW destined to change future design

1 Aug 2004

Reading time 6 minutes

Commenting on the successfull completion of the SAFE-FLOW project, Joaqu’n L—pez-Cortijo of IZAR FENE shipyards, concluded: ÒThese results will ...
Paper
Wave Impact Excitation on Ship Type Offshore Structures in Steep Fronted Waves

1 Aug 2004

Wave impacts in steep fronted waves can induce extremely large impact pressures on the hull of moored ship-type offshore structures. As part of the ...
Paper
An Approach to Calculate the Probability of Wave Impact on an FPSO Bow

20 Jun 2004

This work aims at characterizing the probability of wave impact and expected impact load on the bow geometry of an FPSO. In order to determine the ...
Paper
The Numerical Simulation of LNG Sloshing with an Improved Volume Of Fluid Method

20 Jun 2004

With the trend towards offshore LNG production and offloading, sloshing of LNG in partially filled tanks has become an important research subject ...
Paper
Low Frequency Motions of LNG carriers Moored in Shallow Water

1 Jun 2004

With the LNG market booming, the need for reliable and safe means of transferring LNG from a producing, floating facility to an LNG carrier and from ...
Paper
Wave Run Up as Important Hydrodynamic Issue for Gravity Based Structures

1 Jun 2004

Gravity Based Structures (GBS) are now seriously considered as LNG import terminal. When the environment of wind and waves is strongly directional, ...
Paper
Numerical Prediction of Wave Loads on Subsea Structures in the Splash Zone

23 May 2004

Existing simulation methods are not able to determine in detail the wave loads on a complex sub-sea structure when it is passing through the splash ...
Paper
The Interaction Effects of Mooring in close Proximity of Other Structures

23 May 2004

Two typical close proximity situations are side-by-side mooring and Gravity Based Structure mooring. In these situations strong interaction effects ...
Paper
Prediction of Wave Impact Loads on Ship-type Offshore Structures in Steep Fronted Waves

23 May 2004

Steep fronted waves can induce extremely large impact pressures on the hull of moored ship-type offshore structures. Several incidents confirmed ...
Paper
Hydrodynamics aspects of Gravity Based Structures in shallow water

1 May 2004

The concrete Gravity Based Structure (GBS) is an attractive concept for shallow water oil and gas developments. The present paper discusses 3 ...
Paper
Wave Impacts due to Steep Fronted Waves

1 Jan 2004

It is the question whether ‘Rogue waves’ can only be identified and characterized by their extreme height s. The results presented in this abstract ...
Magazine
MARIN focuses on new offshore LNG concepts

1 Dec 2003

Reading time 9 minutes

Liquid Natural Gas (LNG) is becoming an increasingly important energy source. Floating LNG production on LNG FPSOs is considered to be a realistic ...
Magazine
California Dreamin' over first floating LNG terminal

1 Dec 2003

Reading time 2 minutes

BHP Billiton has filed an application under the Deepwater Ports Act with the US Coast Guard and Maritime Administration along with an application ...
Paper
A New Simulation Method for the Installation of Subsea Structures from the Splash Zone to the Ultra Deep

19 Nov 2003

Existing simulation methods are not able to determine in detail the wave loads on a complex subsea structure when it is passing through the splash ...
Paper
Design Aspects of Green Water Loading on FPSOs

1 Jun 2003

Green water is a significant problem for floating ship-type offshore structures, which needs to be assessed in the early design of the structure. ...
Magazine
10th FPSO JIP Week & FPSO Research Forum proves a Spanish success

1 Apr 2003

Reading time 3 minutes

Report highlights the 10th JIP Week where more than 100 people, representing 35 different companies, in the offshore industry gathered.
Magazine
MARIN focus on SHELL's offshore LNG developments

1 Apr 2003

Reading time 8 minutes

As loading and offloading now more often take place in an offshore environment rather than ashore in a harbour, and as natural gas becomes an ...
Thesis
Green Water on Ship-type Offshore Structures

31 Oct 2002

The main objective of this study is to develop methods for the evaluation of green water on ship-type offshore structures based on a clear ...
Paper
Prediction of Green Water and Wave Loading Using a Navier-Stokes Based Simulation Tool

23 Jun 2002

Results of computer simulation of wave and green water loading on floating offshore structures are presented. The simulation program used is a CFD ...
Paper
Green Water Evaluation for FPSOs in the Gulf of Mexico

1 May 2002

Estimation of green water occurrence and the associated loading on exposed structures is an important design consideration for FPSOs [Floating ...
Magazine
MARIN aims to play an important role in the offshore industry

1 Apr 2002

Reading time 6 minutes

2001 saw MARIN getting increasingly involved in the offshore industry. Bas Bucher, Henk van den Boom and Jos van Doorn explain the increasing role ...
Magazine
Initiatives flow from Lisbon FPSO JIP Week

1 Apr 2002

Reading time 6 minutes

As usual the FPSO JIP week proved invaluable as a forum whereby leading industry members in the field of floating production can get together, ...
Magazine
New TLD concept tackles harsh environments

1 Apr 2002

Reading time 3 minutes

A current drive to produce oil in deeper and deeper waters has pushed many oil companies to look into new technologies and to lower costs for their ...
Paper
Important Environmental Modelling Aspects for Ultra Deep Water Model Tests

1 Oct 2001

Model testing for ultra deep water projects requires special attention to the modelling of waterdepth, wind, waves and current. Due to the large ...
Paper
Design and operational evaluation of offloading operations for deep water FPSOs

1 Oct 2001

Offshore offloading operations take place in many locations around the world. Presently a great number of new deepwater developments are under ...
Paper
Numerical Multiple-body Simulations of Side-by-side Mooring to an FPSO

17 Jun 2001

A numerical time domain simulation model has been developed for the prediction of the hydrodynamic response of an LNG FPSO with an alongside moored ...
Paper
A Numerical Study on Wave Run Up on an FPSO Bow

3 Jun 2001

In this paper results are presented of numerical simulations of a wedge that penetrates the water surface. An extensive test series was carried out ...
Magazine
Offshore engineers' numerical toolbox

1 Apr 2001

Reading time 3 minutes

MARIN's suite of offshore simulation programs has become a real numerical 'toolbox' with 'hammers and screwdrivers' for the everyday problems, and ...
Magazine
JIPs 'Offloading Operability' and 'FPSO Roll'

1 Apr 2001

Reading time 3 minutes

Stimulated by its industry contacts, MARIN has started two new JIP initiatives: 'Offloading Operability' (offloading from FPSOs) and 'FPSO Roll' ...
Magazine
Deepwater exploration and production solutions

1 Apr 2001

Reading time 5 minutes

Since the opening of the new Offshore Basin in July 2000, the offshore industry has shown overwhelming interest in its unique wind, wave and current ...
Paper
Green Water Susceptibility of North Sea FPSO/FSUs

1 Dec 2000

The UK Health & Safety Executive recently undertook a study with BOMEL and MARIN to investigate the exposure of North Sea FPSO/FSUs to green water ...
Magazine
In the Offshore Basin, current affairs are the order of the day

1 Jun 2000

Reading time 6 minutes

The offshore market is searching for reserves in ever deeper waters, a reality which makes the need for pin-point accurate current generation in a ...
Magazine
Before the great flood

1 Jun 2000

Reading time 6 minutes

The technological trend offshore has been to search in increasingly deep waters Ð but even from a model scale perspective, this can be hard to ...
Magazine
Storms at the click of a switch

1 Jun 2000

Reading time 3 minutes

Model tests have invariably tried to simulate the forces of nature, of wind, wave and currents - the rule-ofthumb being the more reliable the ...
Paper
The effect of bow flare angle on FPSO green water loading

14 Feb 2000

In this paper green water at the bow of weathervaning FPSOs is investigated. The strongly non-linear relative wave motions at the bow can come above ...
Paper
Model Test Challenges for Deep Water Floaters

1 Dec 1999

Within a relatively short time, floating production systems have been accepted by the offshore industry as reliable and economic solutions for oil ...
Paper
Green water from the side of a weathervaning FPSO

11 Jul 1999

In the paper the relative wave motions along the side of a weathervaning FPSO are investigated. In non-collinear directions of wind, waves and ...
Paper
Hydrodynamic Research Topics for DP Semi Submersibles

1 May 1999

The study of the behavior of dynamically positioned semi submersibles in the time domain can deliver important information on the positioning ...
Paper
Features of the State-of-the-Art Deepwater Offshore Basin

1 May 1999

Reliable model testing for deep water requires the controlled modeling of wind, waves and current in time and space to achieve a realistic and ...
Paper
A nonlinear 3-D approach to simulate GREEN WATER dynamics on deck

1 Jan 1999

This paper presents a numerical method to predict the 3-D flow of water on deck and resulting loads using the shallow water equations. The numerical ...
Paper
Model Test Techniques for Deep Water Moorings

1 Oct 1998

Why does a research institute build a new deep water model basin in 2000? Would it not be better to invest only in the development of new numerical ...
Paper
A new method for the prediction of non-linear relative wave motions

1 Jan 1998

The problem of green water on the bow decks of floating offshore production units in large survival waves is an important design problem. An ...
Paper
An Investigation into the Numerical Simulation of Green Water

1 Jan 1997

Naval ships as well as floating offshore units can suffer serious damage due to green water loading. In recent model test research at MARIN the ...
Paper
The Influence of the Bow Shape of FPSOs on Drift Forces and Green Water

1 May 1996

In this paper the influence of the bow shape of FPSOS on drift forces and green water loading is studied. Use is made of the results of model tests ...
Paper
The Impact of Green Water on FPSO Design

1 May 1995

For weather-vaning turret moored FPSO's in survival conditions the bow is always exposed to the wave action. When the waves come above the ...