ACMA Expands Analysis Capabilities

Friday, May 01, 2009

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. Adding CFD capability enables ACMA to have its own “Virtual Tow Tank”. This allows these analyses to be done faster, at less cost and earlier in the design cycle for maximum benefit to the client. And, in many cases, CFD actually does a better job of predicting the loading due to the incumbent limitations in model testing.

CFD analyses are particularly useful in the following types of projects:
•    Vessel Resistance prediction
•    Vessel Motions prediction in regular and random seas, both stationary and underway
•    Dynamic Hydrostatic / Hydrodynamic Loading on vessel structures
•    Accurate prediction of the viscous effects on moored vessels
•    Analysis of sloshing loads inside partially-filled cargo or ballast tanks
•    Hull design optimization through flow visualization
•    Conjugate Heat Transfer analyses for structures on vessels carrying refrigerated cargo (CNG, LNG or similar)

A design process will still include Tank Testing as part of the program, but the inclusion of a detailed CFD analysis ahead of Tank Testing will allow testing to focus on confirmation of the analyses and will also provide the engineering team with a clearer picture of what they can expect to see in the model basin.

ACMA has integrated the CFD analysis into its toolbox of analysis tools which includes Finite Element Analysis (FEA) and 3D Diffraction mooring analysis (fully coupled). And, with the addition of the new computing cluster, run times on the full range of ACMA’s advanced analysis and design software has been minimized.

(www.acma-inc.com)

Maritime Reporter November 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Naval Architecture

Damen Responds to Evolving Fishing Practices

Maaskant Shipyards Stellendam meets fishing sector’s growing needs by performing electric pulse fishing conversions   As European fishing policies evolve, so fishing techniques advance.

Damen Delivers Survey Vessel to Fugro

Fugro Frontier is the third vessel in a series received by Fugro during 2014   Three months after its last delivery, Fugro has received the third of a series

Vard Wins Farstad's OSCV Contract

Vard Holdings Limited (“VARD”) has secured a contract for the design and construction of one Offshore Subsea Construction Vessel (“OSCV”) for Farstad Shipping (“Farstad”).

 
 
Maritime Careers / Shipboard Positions Maritime Standards Naval Architecture Navigation Pipelines Pod Propulsion Port Authority Ship Electronics Shipbuilding / Vessel Construction Winch
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: 0.1386 sec (7 req/sec)