BV Accepts Standardized CFD Predictions

MarineLink.com
Wednesday, November 13, 2013

Bureau Veritas (BV) has authorized on an “Approval in Principle” basis a new Computational Fluid Dynamics (CFD)-based performance prediction methodology developed by Robert Allan Ltd. as the basis for formally granting the service notation Escort Tug.

While previously some classification societies have approved computer-based escort predictions for new tugs on a case by case basis, the majority still require a full-scale trial before issuing an escort notation and the associated escort numeral. The process of predicting steering and braking forces and assessing stability to meet classification society requirements has been notoriously complex and difficult without model tests or full scale trials. This is because the various forces from the hull, thrusters and towline during escort operations all have to be determined, along with the equilibrium yaw and heel orientations of the tug under all the operating conditions of interest.

Now, this new CFD option is available for the tug owner, without the delays and expense of model tests or the cost, complexity and inherent potential inaccuracy of full-scale sea trials. By applying sophisticated CFD techniques within a preapproved, standardized methodology, Robert Allan Ltd. is able to accurately evaluate escort performance and compliance with Class requirements early in the design process. Applicable not only to in-house designs, Robert Allan Ltd. offers this CFD Escort Analysis as a service to clients interested in evaluating existing tugs or other designs.

While BV is the first major Classification Society to formally grant an Approval in Principle for this advanced methodology, Robert Allan Ltd. is actively working with other IACS members to obtain their approval of this CFD based methodology.

ral.ca
 

Maritime Reporter February 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

COMPIT to Showcase Smarter Ships, Systems & Solutions

The 14th International Conference on Computer and IT Applications in the Maritime Industries (COMPIT) will take place from 11th to 13th May 2015 in Ulrichshusen, Germany.

China's Maritime Advances Worry US

The Director of U.S. National Intelligence, James Clapper, has expressed his concern at the progress of China in maritime zones it shares with its neighbors, accused

Davie Building LNG-powered Ferries

Canadian shipbuilder Davie held a keel laying ceremony for MV Armand-Imbeau II, marking the beginning of the hull assembly for this first of two sisterships under

Naval Architecture

COMPIT to Showcase Smarter Ships, Systems & Solutions

The 14th International Conference on Computer and IT Applications in the Maritime Industries (COMPIT) will take place from 11th to 13th May 2015 in Ulrichshusen, Germany.

Davie Building LNG-powered Ferries

Canadian shipbuilder Davie held a keel laying ceremony for MV Armand-Imbeau II, marking the beginning of the hull assembly for this first of two sisterships under

USCG Foundation Announces Scholarships

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

News

USCG Free Boat from Ice Near Woods Hole

A Coast Guard crew responded to a fishing vessel trapped in ice in Woods Hole Passage, Woods Hole, Massachusetts, Saturday. At about 3 p.m., the crew of the fishing boat Capt.

Tug Boat Owner Jailed After Crew Man Dies

A tug boat owner was today was given an 8 month custodial sentence after his crew member died trying to reattach a tow line in a violent storm. During today’s hearing at Southampton Crown Court,

COMPIT to Showcase Smarter Ships, Systems & Solutions

The 14th International Conference on Computer and IT Applications in the Maritime Industries (COMPIT) will take place from 11th to 13th May 2015 in Ulrichshusen, Germany.

Software Solutions

COMPIT to Showcase Smarter Ships, Systems & Solutions

The 14th International Conference on Computer and IT Applications in the Maritime Industries (COMPIT) will take place from 11th to 13th May 2015 in Ulrichshusen, Germany.

Voyager Navigation Software for German Research Vessel

Global Navigation Solutions (GNS) reported that operators Briese Schiffahrt has chosen to install its Voyager navigation software on Germany’s newest research vessel, RV Sonne.

Classification Societies

ClassNK's Structural Rules for Bulkers & Tankers

The Nippon Kaiji Kyokai (ClassNK) has announced the establishment of its “Common Structural Rules for Bulk Carriers and Oil Tanker” (Rules for the Survey and

ClassNK Updates Guidelines for Floating Offshore Facilities

ClassNK released a new version of its Guidelines for Floating Offshore Facilities for LNG/LPG Production, Storage, Offloading and Regasification.   Available on the ClassNK website,

Rolls-Royce to Power Zhuhai Ferries

Rolls-Royce has been selected to supply waterjets and high speed MTU diesel engines to power two new aluminium catamaran fast ferries for Chinese ferry operator

 
 
Maritime Careers / Shipboard Positions Maritime Standards Naval Architecture Navigation Offshore Oil Port Authority Salvage Shipbuilding / Vessel Construction Sonar Winch
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: 0.2253 sec (4 req/sec)