Geometry at the Heart

Christian Veldhuis
Tuesday, September 10, 2013
Christian Veldhuis is project manager at the Ships department of MARIN, the Maritime Research Institute Netherlands.

Computational geometry is at the heart of much of MARIN’s day-to-day business

Computational geometry is at the heart of much of MARIN’s day-to-day business, which includes the hull, appendages and propulsion design and optimization, to the milling of models and detailed CFD calculations. And computational geometry is also set to play a key role in longer-term research and development carried out by MARIN, its clients and partners.
In 2012, MARIN started a new, long-term project to update and expand its geometry capabilities for hulls, appendages and propellers. The aim is to enable designers, CAD and CFD users to model and optimize their designs effectively and interface them with the outside world: from geometry input to analysis, (CFD) calculations and model production.

New propulsion design tools

New tools were developed to design propellers and to generate suitable propeller geometry for panel and RANS codes. First, the well-known Rhinoceros 3D modelling suite was selected as the basis for the new CAD tools. Because Rhino has a lot of out-of-the-box  features, MARIN could focus on adding value and MARIN-specific functionality. MARIN was able to develop multiple plug-ins for Rhino that are capable of reading and writing various propeller formats, showing the geometry on the screen and enabling the designer to manipulate the propeller design. Accurate representations of propeller geometry could then be generated for detailed calculations using MARIN’s unstructured and unsteady  RANS code ReFRESCO.

Hull lines

MARIN’s existing hull lines’ design tool “Geometry Modelling of Ships” (GMS), which has been in development for over 20 years, will also get a complete overhaul. Over the coming months and years, more and more functionality will be re-implemented and expanded as Rhino plug-ins using the current capabilities in GMS as a basis. Hull fairing, as applied in GMS, is one of these unique design capabilities that allow MARIN to design hundreds of hulls a year. There are simply no other tools available that give a designer such speed when drawing and fairing a hull. The existing knowledge and methods will be preserved in the new tools but further expanded with new, even more efficient hull drawing and fairing functionality.


Christian Veldhuis
is project manager at the Ships department of MARIN, the Maritime Research Institute Netherlands. MARIN offers simulation, model testing, full-scale measurements and training programs, to the shipbuilding and offshore industry and governments.
e: c.veldhuis@marin.nl • www.marin.nl

(As published in the August 2013 edition of Maritime Reporter & Engineering News - www.marinelink.com)

Maritime Reporter September 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

Coast Guard Foundation to Honor USCG in Miami

The Coast Guard Foundation, a nonprofit organization committed to the education and welfare of all Coast Guard members and their families, announced today that

Maritime Broadband Opens Office in Greece

Maritime Broadband has expanded its worldwide footprint by opening an office, Maritime Broadband Hellas, in Athens, Greece. The new office addresses the growing

Renewable Energy: Schottel Tidal Turbines Ready For Use

In the last months Schottel  successfully tested its hydrokinetic turbines in Strangford Lough, Northern Ireland. The full-scale tests included 260 operating hours under realistic conditions.

Shipbuilding

Catamaran Passenger Ferries Delivered in Angola

Incat Crowther announced the delivery a pair of 30m catamaran passenger ferries, Macôco and Panguila, to Instituto Marítimo e Portuário de Angola. The vessels, built by Astilleros Armon in Spain,

Offshore Oil: Lamprell Completes Caspian Sea Drilling Unit

UAE-based Lamprell said that it completed construction of the second Caspian Sea jackup drilling rig, Mercury, for service in the Caspian Sea.   "I am delighted

TRIYARDS Buys into Aluminium Shipbuilding Expertise

TRIYARDS Holdings Limited, an offshore vessel fabrication and engineering solutions provider to the oil and gas (O&G) industry, has added new capabilities, products

Naval Architecture

New Standard for LNG Cargo Containment Systems

Wilhelmsen Technical Solutions (WTS) said it has successfully completing the gas trial for the first LNG carrier built to a Boil Off Rate (BOR) of 0.08% per day.

Performance by Design: Hydrodynamics for High-Speed Vessels

The new book “Performance by Design: Hydrodynamics for High-Speed Vessels” will be introduced on October 30 at the Fort Lauderdale International Boat Show, Donald L.

NMRA Awards Scholarship to Yacht Design Students

The National Marine Representatives Association (NMRA) awarded two scholarships to students pursuing careers in the field. Noah Luff of Ventura, California is one

Software Solutions

Northrop Grumman Sponsors Maritime RobotX Challenge

Northrop Grumman Corporation is expanding its support for science, technology, engineering and math (STEM) education across the globe by sponsoring the Maritime RobotX Challenge in Singapore, Oct.

New Bahamas Northwest Chart Set Upgrade

nv charts announces the release of its newly updated chart set for Region 9.1, Bahamas Northwest, including Bimini and Berry Islands, Nassau to Abaco, and Grand Bahama,

SSI's PublisherLT Webinar Postponed

Due to illness of one of the presenters, SSI's free webinar on its EnterprisePlatform PublisherLT software has been postponed by one week to Wednesday, October 22, 2014 at 8 a.

 
 
Maritime Contracts Maritime Security Maritime Standards Naval Architecture Navigation Offshore Oil Pipelines Pod Propulsion Salvage Sonar
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1845 sec (5 req/sec)