US Navy Completes Testing Cobra Bow Bulb

Press Release
Wednesday, August 08, 2012

Naval Surface Warfare Center (NSWC) Carderock Division researchers complete testing of bulb bows for DDG 51-class.

Partnering with Program Executive Office (PEO) Ships and the Naval Sea Systems Command (NAVSEA) Fleet Readiness Research and Development Program, NSWCCD conducted testing as part of the Navy's overall initiatives to reduce fuel consumption.

Located near the waterline, the bow bulb is an inverted tear drop shape that protrudes from the hull and is designed to reduce the ship's wave resistance. Specifically, the bow bulb creates a wave designed to interfere with the existing bow wave which reduces the amount of drag on the ship as well as fuel consumption and engine exhaust emissions.


"It is my hope that the DDG 51 class bow bulb will parallel the success of previous [NAVSEA] sponsored designs such as the stern flap, and not just improve the capabilities of the Navy's combatants, but provide for a reduction in fuel consumption and for millions of dollars in cost savings as well," said Dominic Cusanelli, NSWC Carderock Bow Bulb testing project lead, who developed the current bow bulb design for use on a naval combatant in the early 1990s. 


Through computational fluid dynamics, NSWC Carderock designed and evaluated more than 20 bow bulb prototypes for DDG 51-class ships. Following the evaluation, NAVSEA selected the four most promising bow bulb prototypes for fabrication and model testing. The model tests will identify the bulb design with the best potential for powering and fuel reduction. 


Maritime Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter April 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Shipbuilding

New Pilot Boat Delivered to Sabine Pilots

Sabine Pilots in Port Arthur, Texas has received a new all-aluminum pilot boat, Port Arthur.   With a deep-V hull designed by C. Raymond Hunt Associates, the

Interview: 50 Years in the Polymer Repair Market

With 50 years dedicated to polymer coating and composite manufacturer Belzona, Geoff Binks looks back on his experience in the industry and maintenance sector.   Geoff

Crowley Christens Third LNG-ready Product Tanker

Crowley Maritime Corporation christened the third of four new LNG-ready Jones Act product tankers at a May 5 ceremony at the Julia Street Cruise Terminal in New Orleans.

Navy

From Whales to Silver Foxes to Refugees: EMILY Robot is A Lifesaver

She’s tough—capable of punching through 30-foot waves and riptides or smashing into rocks and reefs. But she’s also tender, providing hope to those in peril.   Meet

China: S.China Sea Criticism Could Have Ramifications

International criticism of China over the disputed South China Sea will rebound like a coiled spring, a Chinese diplomat said on Friday, as a U.S. warship visited

Italy Rescues Nearly 1,800 Migrants in Mediterranean

Italian vessels have helped rescue nearly 1,800 migrants from boats trying to reach Italy from north Africa in the last 24 hours, the navy said on Friday, indicating

 
 
Maritime Security Maritime Standards Offshore Oil Pipelines Port Authority Salvage Ship Electronics Ship Repair Ship Simulators Sonar
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: 0.0571 sec (18 req/sec)