Fluid Dynamics

  • 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). The CFD method initially serves to optimize the shape of the propeller blade; it also provides the exact loads for the structural and mechanical optimization by using the Finite Element Method (FEM).

    The new VSP blades for the propeller size 36R6/255- 2 represent an important step towards the further improvement of the hydromechanics of Voith Schneider Propellers.

    For new propellers, the new profiles will be standard; any further improvements can be realized with immediate effect. Voith, founded in 1867. has a long history in the marine propulsion field. With 24,000 employees and annual sales of about $3 billion, it is one of the largest of Europe's family-owned companies.

    Circle 1 on Reader Service Card Below: A CAD illustration of the new VSP size 36R6/255-2 with a propeller input power of 3380kW.

    Top Right: Blade after machining.

  • Ballast water management poses problems in design and operation of ships. Computational fluid dynamics (CFD) offers solutions with design, type approval and trouble-shooting.    Computational fluid dynamics (CFD) denotes collectively techniques for solving equations describing the physics of fluid flow.

  • The Crossover ball joint from Vosta LMG is a new dredge ball joint that is designed to provide optimal flow performance. 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

  • capability at Carderock.A significant amount of testing is conducted before coming to the LCC. “We can do our computer modeling of the computational fluid dynamics, then build a physical model to test in our tow tank. Then we can test that model, or a larger one, in the LCC. Eventually, our signatures department

  • . Extensive engineering design work is now performed using specialized software to produce local and global finite element (FE) and computational fluid dynamics (CFD) analysis to develop optimum designs. The ability to model equipment and system responses to environmental forces helps advance product development

  • of BMT Group. Suba highlights the unique safety concerns which need to be considered and provides insight into the benefits of using Computational Fluid Dynamics (CFD) to complement physical modelling through Wind Tunnel Testing and ensure oil and gas operators have confidence that the design is fit for

  • solution tested at model scale has increased uncertainty of actual performance at ship scale due to deficiencies of the scaling process. Computational Fluid Dynamics (or CFD) has long been touted as a credible alternative to tank testing, providing a “numerical” model basin that could, at least in principle

  • Guidelines (NVIC 9-97 Ch-1). The catamaran features an advanced hull shape that was custom designed using digital modeling and Computational Fluid Dynamics (CFD) analysis testing. CFD hull optimization led to savings of nearly 20 percent power. The hull design is complemented by Teknicraft’s signature

  • , machinery and system configuration. These developments were based on DNV GL’s integrated systems engineering approach COSSMOS, computational fluid dynamics (CFD) calculations, and a containment system design, tailored to a specific operational profile and anticipated trades. HHI and DNV GL carried

  • with the USACE is the design of a wicket lifting vessel for operation at the Olmsted Lock & Dam on the Ohio River. Extensive use of both Computational Fluid Dynamics (CFD) and Finite Element Analysis (FEA) was incorporated in the design process to ensure that the vessel is capable of performing the necessary

  • on an earlier, small-scale 65-ft., 50 LT Navatek lifting body demonstrator craft called M1DFOIL. as well as through extensive computational fluid dynamics (CFD) studies. A former U.S. Navy Surface Effect Ship (SES-200) provided the parent hull of the HYSWAC, reducing project costs. During the

  • emeritus, Webb Institute of Naval Architecture, Glen Cove, N.Y. Committee on Journal of Ship Research — chairman, Ralph D. Cooper, head, Fluid Dynamics Program, Office of Naval Research, Department of the Navy, Arlington, Va. Committee on Marine Technology — chairman, E. Scott Dillon, consultant

  • MR Feb-24#29 AMERICAN ROLL-ON ROLL-OFF CARRIER (ARC)
operate a US ?  ag)
    February 2024 - Maritime Reporter and Engineering News page: 29

    AMERICAN ROLL-ON ROLL-OFF CARRIER (ARC) operate a US ? ag ship just for the MSP customer through that global network. As an example of “clarity and con- stipend. It’s a cargo driven industry, and We are certainly a unique business unit sistency,” Ebeling points ? rst to “the those cargoes help to

  • MR Feb-24#20 MARKETS
FPSO technology dominates the region’s FPS demand.)
    February 2024 - Maritime Reporter and Engineering News page: 20

    MARKETS FPSO technology dominates the region’s FPS demand. duction and storage of low and zero emission energy carriers, In all, 18 countries in West and East Africa are expected such as methanol and ammonia. One exciting development to receive new FPSOs, FLNGs and FPUs between 2024 and leverages

  • MR Feb-24#18 MARKETS
Scan the QR Code to 
Download the Intelatus)
    February 2024 - Maritime Reporter and Engineering News page: 18

    MARKETS Scan the QR Code to Download the Intelatus Floating Production White Paper. Floating Production – A growing segment in transition © AdobeStock_Dolores Harvey The specialized deepwater oil & gas and ? oating offshore wind segments will share many of the same stakeholders and supply chains

  • MN Feb-24#14 Insights
to the organization’s team of more than 75 expert)
    February 2024 - Marine News page: 14

    Insights to the organization’s team of more than 75 expert instruc- without paying that price in blood and oil.’ They get to do tors. “We bring in the specialists who know the material things they would not normally get to do, and then they can through and through.” re? ne those skills in what we know

  • MN Feb-24#11 Insights
All images: MITAGS
she explained. “We can have)
    February 2024 - Marine News page: 11

    Insights All images: MITAGS she explained. “We can have over 150 years of sea service sitting at the lunch table at any point in time, and it really creates an interesting and dynamic environment,” Gianel- loni said, referring to the instructional staff. “We are not in any way a certi? cate farm. The

  • MT Jan-24#4th Cover  Monitoring; Under-ice Fluid Dynamics.
www.teledynemarine)
    January 2024 - Marine Technology Reporter page: 4th Cover

    help you accomplish your mission: Hurricane Intensity Mapping; Marine Mammal Tracking and Mitigation, Biological & Ecological Monitoring; Under-ice Fluid Dynamics. www.teledynemarine.com MTR JanFeb2024 Covers 2,3 and 4.indd 3 1/18/2024 9:09:40 A

  • MT Jan-24#64  206456
47 . . . . .Engineered Fluids, Inc. . . . . . . . )
    January 2024 - Marine Technology Reporter page: 64

    Subsea Ltd . . . . . . . . . . . . . . . .www.digitaledgesubsea.com . . . . . . . . . . . . . . . . . . . . . .+44 (1229) 206456 47 . . . . .Engineered Fluids, Inc. . . . . . . . . . . . . . . . . .www.EngineeredFluids.com . . . . . . . . . . . . . . . . . . . . . . . . . .(725) 218-1955 C3 . . . . .EvoLogics

  • MT Jan-24#55 Gazelle is banking on its 
modular solution, which Ortega)
    January 2024 - Marine Technology Reporter page: 55

    Gazelle is banking on its modular solution, which Ortega says should represent a 30% reduced platform cost. “We are targeting 75% less of mooring length compared. So less mooring length, less materials will be used.” Alvaro Ortega, CFO, Gazelle Wind Power All images courtesy Gazelle Offshore Wind Gaze

  • MT Jan-24#52  
Images courtesy Engineered Fluids Inc.
This experiment)
    January 2024 - Marine Technology Reporter page: 52

    TECH FEATURE BATTERY SAFETY Images courtesy Engineered Fluids Inc. This experiment has since been replicated with other batteries and cell con? gurations, and demonstrates the inherent ? re safety of SLIC Technology. jacent cells were not affected, and continued to operate nor- Failures) of electronic

  • MT Jan-24#51  immersing it into Engineered 
Fluids’ AmpCool™ Fluid. In each)
    January 2024 - Marine Technology Reporter page: 51

    cells were formed by binding cells with 0.5 mm spacing between them. One battery pack was cooled with air, the other by immersing it into Engineered Fluids’ AmpCool™ Fluid. In each battery pack, a nail was driven through one of the cells in the middle of the pack, short-circuiting it and initiating

  • MT Jan-24#50 , Chief Scientist, Engineered Fluids, Inc.
evelopments in)
    January 2024 - Marine Technology Reporter page: 50

    TECH FEATURE BATTERY SAFETY BATTERY THERMAL MANAGEMENT IN SUBMARINE APPLICATIONS Dr. David Sundin, Chief Scientist, Engineered Fluids, Inc. evelopments in battery technology have yielded into the hull of the vessel, or heat can be transferred directly compact energy storage systems that output higher

  • MT Jan-24#48 TECH FEATURE NBOSI
SMALL CTD MAKER PACKS 
A POWERFUL)
    January 2024 - Marine Technology Reporter page: 48

    TECH FEATURE NBOSI SMALL CTD MAKER PACKS A POWERFUL PUNCH NBOSI Neil Brown Ocean Sensors Inc. (NBOSI) has a long history supplying research-quality Conductivity-Temperature-Depth (CTD) sensors in a compact, cost-effective and easy-to- integrate package for a range of subsea vehicles, including the

  • MT Jan-24#46 ROVS
Omega Subsea 
Robotics ordered 
six complete ROV)
    January 2024 - Marine Technology Reporter page: 46

    ROVS Omega Subsea Robotics ordered six complete ROV systems from Kystdesign. Image courtesy SMD DEME’s upcoming subsea rock installation vessel Yellow- structor ROV systems and two brand new compact Construc- stone, scheduled to join the ? eet in the ? rst half of 2024. tor ROV systems. The systems

  • MT Jan-24#43 he world beneath the ocean’s surface remains  and extreme)
    January 2024 - Marine Technology Reporter page: 43

    he world beneath the ocean’s surface remains and extreme environments, including the deepest parts of one of the last frontiers of exploration, where the ocean, venturing into uncharted territories, and discover- the mysteries of the deep beckon to be uncov- ing new species and geological phenomena. ered.

  • MT Jan-24#35 JIM MCNEILL:
LEADING EARTH’S 
CITIZEN WARRIORS 
ACROSS THE)
    January 2024 - Marine Technology Reporter page: 35

    JIM MCNEILL: LEADING EARTH’S CITIZEN WARRIORS ACROSS THE SEA By Celia Konowe n the face of intensifying climate change and McNeill, former scientist and internationally renowned associated environmental unknowns, one world British explorer, has more than 36 years of experience travel- explorer has

  • MT Jan-24#32 SUBSEA VEHICLES DEFENSE
USS Baltimore (SSN 704) served for)
    January 2024 - Marine Technology Reporter page: 32

    SUBSEA VEHICLES DEFENSE USS Baltimore (SSN 704) served for just 15 and a half years in 2004, and the newest, USS Hyman G. Rickover (SSN 795) of active service. joining the ? eet in October of 2023. Newer versions will be Los Angeles-class submarines carried MK-48 heavyweight ? tted with the Virginia

  • MT Jan-24#31 at depths up to 1,000 feet. serve as a moored training)
    January 2024 - Marine Technology Reporter page: 31

    at depths up to 1,000 feet. serve as a moored training ship (MTS ton. Some of the 688s were pulled from Hammerhead consists of a mooring 701) and the Nuclear Power School service at their mid-life point rather than module that plants itself on the bot- in Charleson, S.C. Likewise USS San incur the

  • MT Jan-24#29 fying mines, especially the hard-to-?  nd 
bottom and)
    January 2024 - Marine Technology Reporter page: 29

    fying mines, especially the hard-to-? nd bottom and buried mines in high clutter environments. Knife? sh uses the low- frequency broadband capability devel- oped by the Physical Acoustics Branch of the Naval Research Laboratory. The 2,000-lb., 22-foot long Knife? sh is based on the Blue? n 21 UUV.

  • MT Jan-24#6  Chief Scientist of Engineered Fluids, Inc., 
the leading provider)
    January 2024 - Marine Technology Reporter page: 6

    and strategic advisory focusing on autonomous undersea Lundquist Sundin systems. Sundin Dr. David Sundin is Founder and Chief Scientist of Engineered Fluids, Inc., the leading provider of thermal management of batteries, EVs and data centers via Immersion Cooling. Dr, Sundin has over 30 years’ experience

  • MR Jan-24#22 MEET THE CTO
ROY CAMPE
In 2015 Belgian shipowner CMB)
    January 2024 - Maritime Reporter and Engineering News page: 22

    MEET THE CTO ROY CAMPE In 2015 Belgian shipowner CMB tapped industry outsider Roy Campe for a simple task: future proof the ? eet. Campe, who came to the table with a background in aerospace plus air and ? uid dynamics design, took the mandate and ran with it, building a team and delivering world

  • MR Jan-24#14  OceanWings are 37  tional Fluid Dynamics (CFD) advance- life)
    January 2024 - Maritime Reporter and Engineering News page: 14

    incredible 68 meters tall. delved into the forefront of Computa- launch site, so it will spend most of its Today’s largest OceanWings are 37 tional Fluid Dynamics (CFD) advance- life on a ? xed trans-Atlantic route be- meters tall with a projected area of 363 ments, encompassing the detailed mod- tween

  • MR Jan-24#13 wingsail design since 2018 by French  where apparent wind)
    January 2024 - Maritime Reporter and Engineering News page: 13

    wingsail design since 2018 by French where apparent wind takes precedence under engines alone. Critically, despite tech startup AYRO has the potential to over true wind. AYRO’s wingsails gen- originally being developed to be handled leave a much larger legacy; by provid- erate propulsive force even

  • MR Jan-24#6 Editorial
MARITIME
REPORTER
AND
ENGINEERING NEWS
M A R I N)
    January 2024 - Maritime Reporter and Engineering News page: 6

    Editorial MARITIME REPORTER AND ENGINEERING NEWS M A R I N E L I N K . C O M HQ 118 E. 25th St., 2nd Floor New York, NY 10010 USA T +1.212.477.6700 CEO John C. O’Malley It’s all about [email protected] President & COO Publisher & Editor Greg Trauthwein the Molecule Photo Justin Zurre trauthwein@ma

  • MT Nov-23#29 New EverClean Robot
Greensea IQ launched of its most)
    November 2023 - Marine Technology Reporter page: 29

    New EverClean Robot Greensea IQ launched of its most advanced EverClean service robot, a leap forward in the realm of supervised reliable autonomy with Over the Horizon (OTH) operational capability for underwa- ter hull maintenance. The EverClean robot is packed with features like depth aided navigation