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DNV Adds Simulation of Slamming, Sloshing Loads Using CFD
Posted Thu July 12, 2007 @02:17PM
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News DNV (Det Norske Veritas) has selected a software solution for computational fluid dynamics (CFD) from CD-adapco to extend its leading-edge technical consulting service line. The new software will be a valuable addition to the DNV toolbox to provide accurate and reliable estimation of slamming and sloshing loads, which are critical for the design and operation of both ships and offshore structures.

Drawing on more than 140 years of experience, DNV deliver services that predict and assess the motions, loads and other dynamic responses of ships and offshore structures in waves or related fluid flow problems.

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Says Dr Bo Cerup-Simonsen, head of DNV Maritime Technical Consulting and DNV Fellow in computational mechanics: “The shipping and energy industries are faced with a number of new challenges, driving the need for novel designs and technologies. For shipping this concerns, among others, container and LNG vessels as well as more specialised ships. The lack of experience for a novel design demands accurate prediction of loads, motions, resistance and propulsion efficiency. For example, slamming pressures on the bow and aft part of the ship and sloshing effects in LNG tanks are some of the areas that are critical and challenging. This new CFD solution combined with our world-class competence will extend our capabilities to better meet this demand.”

CD-adapco has a long history of successful partnerships with leading companies in both the maritime and petrochemical industries. The company has invested heavily in providing capabilities within its software that meet the most challenging problems within these industries.

“We are delighted that DNV, with its global presence and as one of the ‘big-three’ classification societies, has justified this investment by choosing our software. By working closely with DNV, we intend to further refine our technology to meet the industry demands,” says Dr Dennis Nagy, CD-adapco’s Vice President of Marketing and Business Development and Director for the Energy Sector,

Simulating Sloshing Behavior
DNV’s engineers will use CD-adapco’s STAR-CCM+ to tackle problems involving sloshing resonance. Liquid motion resonance can lead to sloshing impacts at sharp corners and knuckles inside tanks, with a potential risk of damage. The software will allow DNV to simulate sloshing behavior driven by a wide range of sea-conditions, allowing engineers both to visualize the liquid motion and to identify critical events that may cause high sloshing induced impact forces. DNV will also use STAR-CCM+ for the analysis of vortex induced vibration and for general six-degree-of freedom free-surface calculations.

From its first release in 2004, STAR-CCM+ has impressed the computational fluid dynamics community with its rapid pace of development. Written “from the ground up” using object-oriented programming and the latest software technology combined with outstanding ease-of-use and accuracy, STAR-CCM+ is an entirely new concept in computational fluid dynamics.

From CAD (Computer-Aided Design) to post-processing, STAR-CCM+ delivers the entire computational fluid dynamics process in a single integrated software environment. This unique approach brings unrivalled ease-of-use and automation to CAD preparation, meshing, model set-up and iterative design studies, enabling engineers to deliver better results, faster.

About CD-adapco
Backed by 25 years of CAE (Computer-Aided Engineering) experience, CD-adapco provides the most versatile solutions to the oil & gas industry for the simulation of fluid flow, heat transfer and fluid/structure interaction. From drilling through to processing, the company’s tools allow engineers and designers to predict how designs will react in operation, before budget is committed to the construction of expensive prototypes. This allows companies to optimize the performance of their product or process for an immediate impact on bottom line results.

About DNV
DNV is a global provider of services for managing risk. Established in 1864, DNV is an independent foundation with the objective of safeguarding life, property and the environment. DNV comprises 300 offices in 100 countries, with over 7000 employees.

For more information, please contact: Amanda Batson ( or Per Wiggo Richardsen (per.wiggo.richardsen

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