Line Optimization: 10% Fuel Savings for Hapag-Lloyd
Design changes made as a result of working with DNV GL has resulted in projected annual fuel savings of more than 10 percent for the new Hapag-Lloyd Cruises passenger expedition ships. The two vessels, HANSEATIC nature and HANSEATIC inspiration, are currently under construction at the Vard Shipyard in Romania and Norway and are expected to launch in April and October 2019. Brought in during the initial design and conception phase, DNV GL experts first created and explored more than 100,000 hull variations for the vessels.
New Operational Structure for Van Oossanen
Netherlands-based Van Oossanen Naval Architects is continuing to trade under the name Van Oossanen. Van Oossanen will act as the Van Oossanen Group, incorporating Fluid Dynamics, Naval Architecture and Hull Vane BV, an independent company established by Van Oossanen. According to Van Oossanen , the renewed business structure follows its growing activities for Computational Fluid Dynamics services in the commercial shipping market. As a separate service from naval architecture, Van Oossanen Fluid Dynamics will operate independently within Van Oossanen. Hull Vane BV, which produces a fuel saving device of the same name, is already operating as an independent sister company of Van Oossanen in order to make the Hull Vane available to the worldwide maritime market.
Damen Presents ‘Gone With the Wind'
Marco Bovio, Senior Research Hydromechanics Engineer at Damen, presented details of internal research Computational Fluid Dynamics (CFD) based project ‘Gone With The Wind’ (GWTW). For the past two years Damen has been conducting a review of CFD technology and its applications in the maritime industry, and GWTW has been addressing one specific aspect of this. Its purpose, to look at the capability of CFD to accurately model the aerodynamic forces that act upon vessels above the waterline, as a separate analysis to those CFD studies that focus on the interactions that occur below the surface.
GL and CD-adapco: CFD Cooperation
(L to R): Engin Cetindogan, Account Manager at CD-adapco, Raimund Schipp, European Director of Sales at CD-adapco, Karsten Fach, GL's Head of Competence Center Engineering Services, Prof. Milovan Peric, Technical Director for CD-Adapco, and Dr Ould el Moctar Head of Department Fluid Dynamics at GL. society Germanischer Lloyd (GL) will cooperate even closer in future. The two companies signed an agreement whereby they will work together in the sector of Computational Fluid Dynamics (CFD) for marine applications.
Rolls-Royce Celebrates 40 Years of Hydrodynamic Research
Today marks the 40th anniversary of the inauguration of the Rolls-Royce Hydrodynamic Research Centre (HRC) in Kristinehamn, Sweden. Since 1971, some 1000 blade designs have been carried out, and hundreds of new propeller models have been tested. While the facility's two cavitation tunnels have been in operation for 40 years, the HRC continues to evolve and employ new technologies, such as Computational Fluid Dynamics (CFD), to advance hydrodynamic research.
MPA and IHPC to Collaborate
MPA and IHPC signed a Memorandum of Understanding (MOU) at MPA's 12th Maritime Forum that will enable maritime companies to leverage on IHPC’s Computational Science and Engineering capabilities through a three-year Maritime Research Program (MRP). Some research topics of interest to participating companies include the development of advanced designs for semi-submersible jack-up rigs and the application of large-scale computational fluid dynamics. Signed by BG (NS) Tay Lim Heng, Chief Executive, MPA, and Ms Yena Lim, Managing Director, A*STAR, the MOU’s overall objective is to further enhance Singapore’s status as a maritime research and development (R&D) hub.
Propulsion: VSP: Same Power, 9% More Bollard Pull
With the commissioning of the Norway's Bukser og Berging Voith Water Tractor Baut, the improved characteristics of the new Voith Schneider Propeller (VSP) blades were demonstrated. The bollard pull — as supervised by DNV — was improved by nine percent while using the same input power. The VSP is designed to provide accurate, stepless and extremely swift thrust variations in accordance with XY coordinates. In order to improve the hydrodynamic characteristics of the VSP further, a new generation of blades has been developed. The basis for the successful development is the numeric simulation of the fluid dynamics (CFD = Computational Fluid Dynamics).
Bureau Veritas, HydrOcean Provide CFD Services
International classification society Bureau Veritas has entered into a technical and commercial cooperation agreement with French hydrodynamic specialist HydrOcean. Under the agreement, HydrOcean will provide advanced Computational Fluid Dynamics (CFD) services to BV’s shipping and offshore clients, and Bureau Veritas will market HydrOcean’s specialist services worldwide. Jean-Francois Segretain, Technical Director, Bureau Veritas, said, “HydrOcean’s CFD services save massive amounts of time for ship, offshore structure and marine energy systems designers.
Free Webinar: Engineering Simulation
As engineering simulation tools and technology continue to advance, the application of Computer Aided Engineering (CAE) in the marine industry has become an indispensable supplement to traditional experimental methods. This is especially true for Computational Fluid Dynamics (CFD) which, among other things, allows engineers to use computer simulation as a “virtual towing tank.” This method provides performance data for various designs, and it is more efficient in both cost and schedule than traditional testing. This event will explore the benefits of CFD simulations for realistically complex designs to compute free-surface hydrodynamics including wave breaking and cavitation while simultaneously accounting for the motion of the maritime vehicles and structures.
Alan C. McClure Expands Analysis Capabilities
Alan C. McClure Expands Computational Fluid Dynamics Analysis Capabilities. Alan C. McClure Associates (ACMA) has announced that the company has recently expanded its Computational Fluid Dynamics (CFD) analysis capabilities with a 50% increase to computational power, expanding their High Performance Computing (HPC) cluster to 48 processor cores, backed by 92GB of memory. This expanded capacity allows the company to handle larger, more complex models. According to ACMA Vice President Darrel Harvey…
DMI Appoints Schack Head of Ship Hydrodynamics
Danish Maritime Institute (DMI) has appointed Ph. D. Naval Architect Christian Schack as Head of Department in Ship Hydrodynamics. Christian Schack will be responsible for both internal and external activities, but he will especially focus on sales and client contact with DMI's clients worldwide. Christian Schack previously held the position as Sales & Marketing Manager at the consulting naval architect firm Knud E. Hansen A/S in Copenhagen. DMI is a leading global supplier of specialized consultancy services and software products focusing upon maritime safety and efficiency and fluid dynamics. technology.
Schottel Hydro Names Lange Managing Director
Niels Alexander Lange took over as Managing Director of the recently founded Schottel Hydro GmbH, a subsidiary of the Schottel Group comprising activities in three segments: Schottel Instream Turbines (SIT), semi-submerged Triton platforms and components, such as turbine hubs and drives. Dipl.-Ing. Lange joined the Josef Becker Research Centre of the Schottel Group in 2011. The naval architect brought along his experience as researcher at the Institute for Fluid Dynamics and Ship Theory of the Hamburg University of Technology.
Rolls-Royce to Equip Five New Cruise Ships
Rolls-Royce has announced a new deal to provide propulsion and deck machinery to five cruise ships being built by Fincantieri at their Monfalcone and Ancona Shipyards in Italy. The firm orders are to supply a Promas system, deck machinery and steering gear to two vessels being built for Viking Ocean Cruises. The contract also covers steering gear and deck machinery for a further vessel under construction for Regent Seven Seas Cruises. Steering gear is also being provided for two vessels being built for Princess.
VOSTA LMG Delivers New Dredge Ball Joints
The Crossover ball joint is a new dredge ball joint that provides optimal flow performance, its manufacturer VOSTA LMG said. Through computational fluid dynamics (CFD) the frictional losses and turbulence have been reduced. Conventional dredge ball joints act like a ball valve when tilted, causing the flow area to reduce and frictional losses to increase. The patented Crossover design incorporates two wear liners which are shaped to provide full flow area in any tilted position.
BMT Delivers CFD Study for FPSO
BMT Fluid Mechanics (BMT), a subsidiary of BMT Group Ltd., completed a Computational Fluid Dynamics (CFD) study for an oil major operating offshore Nigeria. BMT reports that its scope of work included an assessment of the current loading to which the FPSO hull is subjected to, which has enabled the oil major to ensure its mooring systems are fit for purpose. “CFD is becoming more commonplace in the oil and gas sector with many customers recognizing it to be an effective tool for solving challenges the industry faces in a less conservative and more efficient manner…
Norsk Hydro Begins Exploration Using SGI Technology
Norsk Hydro ASA selected SGItechnology to expand its national and international oil exploration efforts as well as for a number of research projects. To perform seismic acoustic tomography and migration velocity analysis to determine optimal oil well drilling sites, Norsk Hydro's facility in Bergen, Norway, selected a large, shared-memory SGI Altix system. For its research center in the port city of Porsgrunn, Norsk Hydro acquired an SGI Altix for computational fluid dynamics applications and a Silicon Graphics Prism visualization system. Norsk Hydro's research center in Bergen is developing and testing different methods of imaging and working on a large variety of technical services for oil and gas production.
BMT Providing Tow Simulation Services for Chevron
Hereema Marine Contractors Nederland B.V Inc. (“HMC”) has awarded a contract to BMT Fluid Mechanics in partnership with BMT ARGOSS, to provide Tow Simulation Services for the inshore tow of Chevron-operated Jack St. Malo and Big Foot Production Platforms to be installed in the Gulf of Mexico. BMT will be engineering, procuring, installing and commissioning a purpose built simulation facility to be located in Houston, Texas, for the purpose of training tug captains and other marine personnel involved with the inshore towing of the platforms from the Ingleside integration yards. The inshore tows are particularly challenging because of the extremely small hull clearances within the shipping channels leading from the yards out to the gulf.
DNV GL Adds Asymmetric Stern To ECO Lines
A vessel with an asymmetric stern has a twisted aft shape that is designed to account for the differing flow conditions on each side of the propeller. The idea emerged in the 1960s, but due to the difficulty of manually developing the optimal shape, this design failed to make a large impact at the time. DNV GL has revisited the idea and, using high-fidelity computer fluid dynamics (CFD) in combination with parametric formal optimization, the classification society can now offer ship owners the option of incorporating an asymmetric stern into their new vessels.
ANSYS Speeds International Yacht Race Winner
Powered by ANSYS solutions to maximize yacht aerodynamics, 'Emirates Team New Zealand' has captured the Louis Vuitton Cup and won the right to compete in the 34th America's Cup. Faced with the challenge of making fast design improvements to its yacht to stay hyper-competitive, Emirates Team New Zealand used a 100 percent simulation-driven development process — eliminating the need for physical prototypes. Team engineers used ANSYS® computational fluid dynamics (CFD) solutions to virtually test different designs, considering up to 750 operating conditions per design.
ACMA Expands Analysis Capabilities
Alan C. McClure Associates (ACMA), a naval architecture and engineering firm, announced that the company has recently expanded its analysis capabilities by acquiring a license for STAR CCM+, the flagship CFD (Computational Fluid Dynamics) package from CD Adapco. This new analysis capability will enable ACMA to determine the effect of viscous flows and non-linear waves on vessel hulls and in internal tanks. ACMA has also purchased a high-performance computing cluster, equivalent to 16 standard desktops to run the new program and accelerated its learning curve by investing heavily in training and running test simulations of past projects. Many of the analyses that ACMA can now perform with CFD were previously analyzed using models tested in a Tow Tank.
Wärtsilä’s New CPP System
At SMM Wärtsilä introduced its latest development of large Controllable Pitch (CP) Propellers, based on the previously known E-hub type. The new Wärtsilä CP propeller system addresses the demands of medium and large size vessel owners, and is particularly applicable for special vessels that are equipped with dynamic positioning capabilities, as well as vessels having ice notation, the manufacturer said. Among the benefits cited are an increased load capability, the high propulsive efficiency…
RK280: Cutting A New Path
The RK280 from the MAN B&W Diesel stable offers the best of both worlds, in that it was designed and built using the accumulated experience garnered since Rudolf Diesel introduced the diesel engine in 1893, melded with modern engine making methodologies which include predictive engineering techniques such as Finite Element Analysis, Dynamic Analysis, Thermodynamic Cycle Simulations and Fluid Dynamic Analysis. Incorporated into this new engine are the results of extensive field study and experience was gained from the RK270 series, which have performed well in the fast ferry, naval and power generation sectors. The new unit is billed by its maker as "the most powerful and fuel efficient 1…
Wärtsilä Launches WTT-40 Transverse Thruster
Wärtsilä is launching its new Wärtsilä WTT-40 transverse thruster. The first WTT-40's have been ordered and are scheduled for delivery during 2016. This first variant is part of Wärtsilä's new transverse thruster series and features a 4000 kW power level and a 3400 mm diameter controllable pitch propeller, neither of which have been available in Wärtsilä's current product range. While Wärtsilä has designed and built large, up to 5500 kW, transverse thrusters as customised versions…