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

News

Missing Person Rescued Near Brackettville

On July 31, Border Patrol Search Trauma and Rescue (BORSTAR) agents and CBP Office of Air and Marine rescued a man who was reported missing the previous morning.

Ross is Fleet Manager, Heidmar

Heidmar announced the promotion of Duncan Ross to Fleet Manager. Duncan joined Heidmar’s London office in 2012 as vessel manager.  Prior to joining Heidmar,

Fire Aboard USS Mount Whitney

A fire broke out on board USS Mount Whitney (LCC 20) while the ship was in Viktor Lenac Shipyard (Rijeka, Croatia) July 31, 2015. There were no personnel injuries in the fire,

Software Solutions

McMurdo Introduces Real-time Fleet Management

McMurdo  has announced PRISMA Connect, a web-based integrated fleet management system that connects ship to shore in real-time for improved communication and operational efficiencies,

Dometic Debuts Engineering Team for Ship-wide Ventilation

Dometic Marine, a division of Dometic Group, a global provider of leisure products for the marine, truck, caravan, motor home and automotive markets, has unveiled its new,

BAE Systems Awards Software Contract to SENER

The Spanish company SENER, Ingeniería y Sistemas S.A has closed a contract with U.K.-based BAE Systems PLC for the integration between FORAN CAD/CAM System and

Classification Societies

LR First to Certify Small Caribbean Ships

LR is the first class society to certify small commercial ships operating in the Caribbean After becoming the first classification society to issue Cargo

ClassNK Releases Guidelines for CNG Carriers

Classification society ClassNK has released its Guidelines for Compressed Natural Gas (CNG) Carriers.   Global economic and population growth is bringing about

INTERSCHALT VDR Earns CCS Certification

INTERSCHALT maritime systems AG, the provider of maritime software, services and systems for navigation and communications systems (NavCom) and manufacturer of Voyage Data Recorder (VDR) systems,

 
 
Maritime Contracts Naval Architecture Navigation Offshore Oil Pipelines Port Authority Salvage Ship Electronics Ship Simulators Shipbuilding / Vessel Construction
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: 0.2249 sec (4 req/sec)