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

Technology

SGS Wet Welding Repairs Approved by DNV GL

DNV GL and Subsea Global Solutions LLC (SGS) say that they have completed an extensive joint research and development program, that will allow permanent repairs

Navy Unmanned Aircraft Sets the Bar

The Navy's X-47B unmanned aircraft has completed its final test aboard 'USS Theodore Roosevelt' (CVN 71) and has returned to its home base at Naval Air Station Patuxent River after eight days at sea
,

Nanotechnology & Big Data: New Review

A report commissioned by the Lloyd’s Register Foundation, reviewing the potential implications of nanotechnology on the safety and performance of engineering assets

Naval Architecture

ASNE to Host Launch & Recovery Symposium

The American Society of Naval Engineers (ASNE) announced that registration has opened for its Launch and Recovery Symposium 2014: Launch and Recovery of Manned

MN 100: Guido Perla & Associates, Inc.

701 5th Avenue Seattle, WA 98104 Tel: (206) 768-1515  Email: Inga.Scholz@gpai.com Website: www.gpai.com President & CEO: Guido Perla The Company: With offices in the US,

‘Naval Architecture for Non Naval Architects’ Course

From September 15-18, 2014, HMC will provide a course “Naval Architecture for Non-Naval Architects” in Singapore and Kuala Lumpur. HMC facilitated this course in cooperation with M.

News

USCG, National Park Service Rescue Sea Turtle

Members from the U.S. Coast Guard and National Park Service rescued a loggerhead sea turtle Sunday in Oregon Inlet. Watchstanders at Coast Guard Sector North Carolina

Bulk Equipment is Delivered to Syzran Refinery

A reactor and a cold high-pressure separator is delivered to the site of Rosneft subsidiary Syzran Refinery for the constructed diesel hydro-treater. The unit

Achinsk Refinery Resumes Operation on Tight Schedule

Achinsk Oil refinery, suspended after the incident of June 15, 2014 has recovered the processes of primary crude oil processing on a tight schedule, according to the plan of repair activities.

Software Solutions

Tankship-specific Version of FindaportCD Released

Harbour & terminal information providers, Shipping Guides Ltd, says its latest tanker-specific  addition enables customers to access the most comprehensive port

Nanotechnology & Big Data: New Review

A report commissioned by the Lloyd’s Register Foundation, reviewing the potential implications of nanotechnology on the safety and performance of engineering assets

Petroleum Geo-Services ASA : Mandatory Trade Notification

Rune Olav Pedersen is awarded 25 000 Performance based Restricted Stock Units as a result of his promotion to General Counsel and SVP Communications and Marketing of PGS,

Classification Societies

SGS Wet Welding Repairs Approved by DNV GL

DNV GL and Subsea Global Solutions LLC (SGS) say that they have completed an extensive joint research and development program, that will allow permanent repairs

USCG, National Park Service Rescue Sea Turtle

Members from the U.S. Coast Guard and National Park Service rescued a loggerhead sea turtle Sunday in Oregon Inlet. Watchstanders at Coast Guard Sector North Carolina

ClassNK's Noboru Ueda Attends KOTC Delivery Ceremony

Mr. Noboru Ueda, Chairman and President of ClassNK attended the delivery ceremony for the M/T Al Yarmouk, constructed at Daewoo Shipbuilding & Marine Engineering Co.

 
 
Maritime Careers / Shipboard Positions Maritime Security Maritime Standards Naval Architecture Offshore Oil Pod Propulsion Port Authority Ship Repair Ship Simulators Shipbuilding / Vessel Construction
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: 0.1928 sec (5 req/sec)