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A Mighty Wind: Using Wind Tunnels to Measure Sound by Deadening the Noise
The Office of Naval Research (ONR) sponsored a project at Virginia Tech University nearly 20 years ago that is now growing in influence across the world for measuring aerospace and aeronautical acoustics. Since noise reverberates against solid surfaces, such as the walls of a wind tunnel where acoustical testing takes place, collecting accurate sound data had been nearly impossible at the time. Researchers were also struggling to discern the sound of the wind tunnel’s air flow from the noise of the object traveling through it. After learning about some experiments on Kevlar as a wind screen, William Devenport, an engineering professor and director of Virginia Tech’s Stability Wind Tunnel, said he and a colleague wrote a proposal to then-ONR program officer Ron Joslin to try adding Kevlar to their wind tunnel walls. Devenport submitted the original grant proposal (N00014–04–1–04933) through the FY 2004 Defense University Research Instrumentation Program (DURIP) for alterations to Virginia Tech’s existing Stability Wind Tunnel that would allow it to measure flow-induced noise of relevance to Navy applications.
Electric Boat Competition Sparks Interest in Naval Science Careers
Student engineering teams from Princeton, Washington College and the University of Alabama have won first place in their respective events at the “Promoting Electric Propulsion” (PEP) boat races, sponsored by the Office of Naval Research (ONR) and the American Society of Naval Engineers (ASNE). In just six years, this electric boat-building competition has grown from a single university to 34, with more than 200 students who took part in the five-mile races on Broad Bay in Virginia Beach. Dr. Steve Russell, program officer, Sea Warfare and Weapons department, said he launched the PEP competition with a colleague from ASNE, Dr. Leigh McCue, and Tim Cullis, Naval Sea Warfare Center Carderock, after seeing a public race by local hobbyists in the Chesapeake Bay.
Electric Power Components and Systems
The Office of Naval Research's Electric Power Components and Systems program supports the Navy’s interest in advanced naval power and energy systems research and technology.
Expeditionary Energy
The Office of Naval Research's Expeditionary Energy program seeks breakthrough technologies to support the future of hybrid and expeditionary warfare.
Operational Endurance from Environmental Carbon
The Office of Naval Research's Operational Endurance from Environmental Carbon program seeks technology development to support sustainable carbon neutral operational energy processes and materials for U.S. Navy and U.S. Marine Corps needs.
Power & Energy Science and Technology
The Advanced Naval Platforms Division's Power & Energy Science and Technology program is focused on solving fundamental research problems, applying scientific knowledge, and developing power and energy solutions to Navy and USMC needs.
Power Electronics & Electromagnetism, Adaptive & Machinery Controls and Advanced Machinery Systems
The Office of Naval Research's Power Electronics & Electromagnetism, Adaptive & Machinery Controls and Advanced Machinery Systems program supports the Navy’s interest in advanced naval power and energy systems science and technology, and autonomous technology.
Power Generation and Energy Storage
The Office of Naval Research's Power Generation and Energy Storage program is focused on developing Navy power generation and energy storage systems and components to improve overall naval platform capability, efficiency and reliability.
Thermal Science and Engineering
The Office of Naval Research's Thermal Science and Engineering program advances thermal science through fundamental studies of multi-phase heat transfer, fluid dynamics and nanostructured materials.
Materials & Processes for Additive Manufacturing
The Office of Naval Research's Materials & Processes for Additive Manufacturing (AM) program is focused on exploring new and novel approaches in developing and understanding AM materials and manufacturing processes for naval applications.