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

Technology

KVH Precision Sensors for Geodetics' Inertial Navigation Systems

KVH Industries, Inc.,  a leading manufacturer of high performance fiber optic-based inertial sensors and gyros has entered into a strategic partnership with Geodetics Inc.

BOEM gives more time to submit plans OCS

The Bureau of Ocean Energy Management (BOEM) announced today the publication of its Final Rule to extend time requirements for submitting a Site Assessment Plan

US: $4B in Loan Aid for Renewable Energy

The U.S. Energy Department on Wednesday unveiled a plan for up to $4 billion in loan aid for renewable energy companies to help rejuvenate a program that faced

Naval Architecture

JFD Awarded Australian Navy Commendation

Commendation awarded by the Royal Australian Navy for dedicated work, commitment and support for Exercise Black Carillon 2013   James Fisher Defence (JFD) has

Damen Launches Kuwait Oil Company’s New Tug

First of 14 ASD Tugs launched at Damen Shipyards Galati The Kuwait Oil Company’s (KOC) new ASD Tug 3212 was launched end of March at Damen Shipyards Galati, Romania.

ClassNK Releases EEDI Verification Software – Free

Japanese classification society ClassNK says it offers its Minimum Propulsion Power Calculation Software and ISO-based Progressive Speed Trial Analysis Software

News

KVH Precision Sensors for Geodetics' Inertial Navigation Systems

KVH Industries, Inc.,  a leading manufacturer of high performance fiber optic-based inertial sensors and gyros has entered into a strategic partnership with Geodetics Inc.

Search resumes for missing in S. Korean ferry disaster

South Korean coastguards and navy divers resumed their search on Thursday for nearly 280 people still missing after a ferry capsized in what could be the country's

POSH may raise $311 Mln in Singapore IPO

PACC Offshore Services Holdings (POSH) could raise at least S$388.27 million ($311 million) after pricing its initial public offering near the bottom of the pricing range indicated earlier,

Software Solutions

KVH Precision Sensors for Geodetics' Inertial Navigation Systems

KVH Industries, Inc.,  a leading manufacturer of high performance fiber optic-based inertial sensors and gyros has entered into a strategic partnership with Geodetics Inc.

ClassNK Releases EEDI Verification Software – Free

Japanese classification society ClassNK says it offers its Minimum Propulsion Power Calculation Software and ISO-based Progressive Speed Trial Analysis Software

OSI to Upgrade Canadian Navy Software

OSI Maritime Systems Signs Contract with the Royal Canadian Navy to Provide In-Service-Support and an Upgrade to the Most Advanced ECPINS-W Sub 6.0 OSI Maritime

Classification Societies

ClassNK Releases EEDI Verification Software – Free

Japanese classification society ClassNK says it offers its Minimum Propulsion Power Calculation Software and ISO-based Progressive Speed Trial Analysis Software

DNV GL Oil & Gas to Expand in Norway

Relocates Norwegian oil and gas HQ to Stavanger, led by Marianne Hauso; to increase staff in Western Norway by 10% in 2014 DNV GL is relocating its oil and

New Oil Tanker Series RS Classed

Two river-sea oil tankers of project RST 22M are to be built to the Russian Maritime Register of Shipping (RS) class. A relevant agreement is signed by RS with

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Navigation Offshore Oil Pod Propulsion Salvage Ship Electronics Ship Simulators Sonar Winch
rss | archive | history | articles | privacy | 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: 0.1872 sec (5 req/sec)