Alan C. McClure Expands Analysis Capabilities

press release
Tuesday, January 10, 2012

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, the company’s investment in both the hardware and software technology has resulted in substantial cost savings for clients in modeling and computational time.


“The company’s new analysis capability will enable ACMA to accurately determine the effect of viscous flows and non-linear waves on vessel hulls and in internal tanks,” said Harvey. “All of the hydrodynamic loads and pressures due to fluid flow are calculated directly, with no reliance on drag coefficients or proprietary modeling factors. Also inherent in a CFD model are shielding effects due to the ‘upstream’ members inhibiting flow onto the ‘downstream’ members. CFD models are typically full scale, which eliminates many common modeling uncertainties inherent with traditional scale model testing.”  Harvey went on to note that ACMA has recently provided a number of analyses that involved the calculation of ship hull resistance predictions.


“With CFD capabilities, it’s easy to modify a model and see how the change impacts vessel performance,” said Harvey. “From this, we can fine-tune the hull form to better optimize its efficiency and, ultimately, the required installed horsepower to meet a speed requirement. This practice has been applied to the design of bulbous bows as well. Known as a ‘Virtual Tow Tank’, this kind of study is used to adjust a model to minimize actual tow tank costs.
ACMA President Scott McClure added, “Tow tank time and model costs can run as much as four times more than our ‘Virtual Tow Tank’ costs. So by doing some CFD analysis and fine-tuning the hull form, only one model needs to be made and the testing time for result verifications is reduced by 75%.”
 

ACMA uses the STAR-CCM+ software, the flagship CFD package from CD-Adapco. Within STAR-CCM+, the flow field is calculated using RANS (Reynolds Averaged Navier Stokes) equations to directly determine the flow effects. Several industry-accepted turbulent flow models can also be applied to the system.  ACMA has integrated the CFD analysis into its already extensive toolbox of analysis tools which includes Finite Element Analysis (FEA) and 3D Diffraction mooring analysis (fully coupled).
 

Maritime Reporter July 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

Missing Person Rescued Near Brackettville

On July 31, Border Patrol Search Trauma and Rescue (BORSTAR) agents and CBP Office of Air and Marine rescued a man who was reported missing the previous morning.

Ross is Fleet Manager, Heidmar

Heidmar announced the promotion of Duncan Ross to Fleet Manager. Duncan joined Heidmar’s London office in 2012 as vessel manager.  Prior to joining Heidmar,

Fire Aboard USS Mount Whitney

A fire broke out on board USS Mount Whitney (LCC 20) while the ship was in Viktor Lenac Shipyard (Rijeka, Croatia) July 31, 2015. There were no personnel injuries in the fire,

Technology

WKCTC to Host Open House for ILM Institute

West Kentucky Community and Technical College will host an open house and ribbon cutting for the Inland Logistics and Marine Institute August 10 from 4 ­– 6 p.

NOIA Applauds Senate Passage of OPENS Act

NOIA President Randall Luthi issued the following statement on the Senate Energy and Natural Resources Committee’s passage of the OPENS Act, which will open new

Google Maps Goes Coastal with Unmanned Boat

A new high-tech unmanned vessel, launched with the help of Google, will use innovative technologies from the boatbuilding and mapping fields to map shorelines and

Shipbuilding

MHI: Notice of Absorption-Type Split Agreements

MHI gives Notice Regarding Conclusion of Absorption-type Split Agreements Relating to Transfer of Ship Construction and Hull Block Manufacture Businesses to Two

Fratelli Neri Orders Damen Tug

One of the largest Italian tug owners, Fratelli Neri S.p.A, ordered its first Damen tug, an ASD 3212, on 21 July 2015.   The vessel will be the first ASD tug

Thai Navy Lobbies for More Submarines

The Royal Thai Navy claims it urgently needs more submarines to compete with other Asian countries.   The assistant commander made the claim aimed at persuading

Naval Architecture

Optimized Tug-Barge System Designs by Robert Allan

Optimized Tug-Barge System Designs by Robert Allan Ltd. by David R. Connand Robert G. Allan, P.Eng. Some veteran Mississippi pushboats and barges have been

Fire-stricken Icebreaker Overhauled

SENER concludes the Almirante Irizar icebreaker engineering works for re-outfit and overhaul   SENER reports it has completed the engineering works relating to

ClassNK Releases Guidelines for CNG Carriers

Classification society ClassNK has released its Guidelines for Compressed Natural Gas (CNG) Carriers.   Global economic and population growth is bringing about

Software Solutions

McMurdo Introduces Real-time Fleet Management

McMurdo  has announced PRISMA Connect, a web-based integrated fleet management system that connects ship to shore in real-time for improved communication and operational efficiencies,

Dometic Debuts Engineering Team for Ship-wide Ventilation

Dometic Marine, a division of Dometic Group, a global provider of leisure products for the marine, truck, caravan, motor home and automotive markets, has unveiled its new,

BAE Systems Awards Software Contract to SENER

The Spanish company SENER, Ingeniería y Sistemas S.A has closed a contract with U.K.-based BAE Systems PLC for the integration between FORAN CAD/CAM System and

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Maritime Standards Naval Architecture Offshore Oil Pod Propulsion Port Authority Ship Repair Shipbuilding / Vessel Construction
rss | archive | history | articles | privacy | 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: 0.2027 sec (5 req/sec)