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 October 2013 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

NAVTOR, AWT Agreement Marks Next Step in E-navigation

NAVTOR has signed an agreement with maritime weather routing specialist Applied Weather Technology (AWT) that will see the two companies integrating their services

BCG Upgrades Virtual GMDSS Simulator

Buffalo Computer Graphics (BCG) Inc. released an updated version of its Virtual Global Maritime Distress and Safety System (VGMDSS) Simulation software. BCG’s VGMDSS

Australia, US Order Anti-ship Missile Decoys

Design of the next generation of anti-ship missile decoys is set to commence following the signing of two contracts between the Australian Defense Force and BAE Systems Australia Pty Ltd.

Naval Architecture

Henderson, Hanes & Associates Opens Doors in Miami

Ocean Engineering/ Naval Architecture Firm Brings Innovation to the Mega Yacht Community The Miami-based ocean engineering and naval architecture firm of Henderson & Associates, Inc.

MAN Propulsion Packages for New Trawler Series

Orders for five fresh-fish trawlers feature two different ship designs and MAN 6L27/38 engines and aft-ship equipment Icelandic owners, HB Grandi, Vinnslustodin hf.

General Dynamics takes Rudy deLeon on Board

The board of directors of General Dynamics has elected Rudy deLeon to be a director of the corporation, effective September 30, 2014. DeLeon is a senior

News

Henderson, Hanes & Associates Opens Doors in Miami

Ocean Engineering/ Naval Architecture Firm Brings Innovation to the Mega Yacht Community The Miami-based ocean engineering and naval architecture firm of Henderson & Associates, Inc.

Austal Launches Trenton (JHSV 5)

Second Joint High Speed Vessel to be launched at Austal in 2014 On September 30, 2014, Austal USA successfully completed the launch process of Trenton (JHSV

DOF Installer Sells Offshore Vessel

DOF Subsea AS subsidiary, DOF Installer ASA, reported the sale of one of its three sister ships, an anchor handling tug supply (AHTS) vessel, to an international buyer.

Software Solutions

BCG Upgrades Virtual GMDSS Simulator

Buffalo Computer Graphics (BCG) Inc. released an updated version of its Virtual Global Maritime Distress and Safety System (VGMDSS) Simulation software. BCG’s VGMDSS

General Dynamics takes Rudy deLeon on Board

The board of directors of General Dynamics has elected Rudy deLeon to be a director of the corporation, effective September 30, 2014. DeLeon is a senior

New Simulation Tool for Collision Reconstruction

BMT ARGOSS and BMT Surveys, subsidiaries of BMT Group Ltd, the international design, engineering and risk management consultancy, announced an innovative new service

Classification Societies

GTT Earns Five AIPs for Multi-gas Membranes

Gaztransport & Technigaz (GTT), designer of membrane containment systems for the maritime transportation and storage of LNG (Liquefied Natural Gas) announced five

Steel Cut for Yamal LNG Project’s Lead Tanker

A steel-cutting ceremony was held on September 29 for the lead gas tanker ordered by SCF Group for transportation of liquefied natural gas (LNG) under the Yamal LNG project.

DNV GL Opens New Office in Malaysia

To meet the growing demand in the region, DNV GL opened a new office in Malaysia. The official opening of the office coincided with the company’s celebration of

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Standards Naval Architecture Offshore Oil Pipelines Ship Electronics Ship Simulators Shipbuilding / Vessel Construction 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: 0.2086 sec (5 req/sec)