Watch: Soft Robot Swims Like Manta Ray
, silicone body that contains a chamber that can be pumped full of air. Inflating the air chamber forces the fins to bend – similar to the down stroke when a manta flaps its fins. When the air is let out of the chamber, the fins spontaneously snap back into their initial position.Studying the fluid dynamics of manta rays also played a key role in controlling the vertical movement of the soft robot. “We observed the swimming motion of manta rays and were able to mimic that behavior in order to control whether the robot swims toward the surface, swims downward, or maintains its position in the
EDGE and Fincantieri Join Forces to Develop Advanced Subsea Defense Systems
benefit of the UAE and other navies worldwide.“This agreement between Fincantieri and EDGE underscores a commitment to pioneering advancements in underwater technologies, combining engineering excellence with a forward-thinking approach. The underwater domain presents unique challenges, from fluid dynamics to communication and autonomy, which demand innovative and resilient solutions.“Together, we aim to develop systems that meet the highest standards of interoperability, addressing critical needs within both the defense and energy sectors. Our efforts are dedicated to setting new benchmarks
All American Marine Delivers Research Vessel for the University of Hawai’i at Mānoa
included transom mounted Humphree interceptors. The lift produced by the hydrofoil reduces the hull resistance while increasing speed and load-bearing capability, while the interceptors offer additional trim control.This advanced hull shape was custom designed using digital modeling and computational fluid dynamics (CFD) analysis testing. The vessel’s design offers all passengers and crew a smooth ride and comfort, as the hull provides a cushioned effect when encountering waves. For the operator, one valuable feature of this vessel is the excellent fuel economy, while also maintaining an estimated
AAM Delivers Survey Vessel for NV5-Geodynamics
hull components are designed to break up wave action and ensure reduced drag while enhancing passenger comfort. According to AAM, the design is proven to have both low-wake wash energy and increased fuel economy. This advanced hull shape was custom designed using digital modeling and Computational Fluid Dynamics (CFD) analysis testing. The vessel’s design offers all passengers and crew a smooth ride and comfort, as the hull provides a cushioned effect when encountering waves. For the operator, the most valuable feature of these vessels is the excellent fuel economy, which consumes approximately
New System Reduces Underwater Radiated Noise from Ship Propellers
in the low-frequency range, is disorientating marine fauna and disrupting their communication signals, leading to behavioral changes or extinction. We now have a cost-effective, easy-to-apply solution that prevents this from happening.”Following four years of comprehensive computational fluid dynamics (CFD), modeling and cavitation tunnel tests during the solution’s development phase at Strathclyde, it was demonstrated that PressurePores can reduce cavitation volume by almost 14% and URN by up to 10dB, Oscar Propulsion said.According to the company, results were further verified in tests
AAM to Build Research Vessel for the University of Hawaiʻi at Mānoa
tunnel at the keel, forward of the center of gravity position and two cantilever-type stern foils. The lift produced by the hydrofoil reduces the hull resistance, while increasing speed and load-bearing capability.This advanced hull shape was custom designed using digital modeling and computational fluid dynamics (CFD) analysis testing. The vessel’s design offers all passengers and crew a smooth ride and comfort, as the hull provides a cushioned effect when encountering waves. For the operator, one valuable feature of this vessel is the excellent fuel economy, while also maintaining an estimated
Kapnick Named NOAA Chief Scientist
recently a managing director at J.P. Morgan in the role of senior climate scientist and sustainability strategist for asset and wealth management.Before joining J.P. Morgan in 2021, Kapnick was a deputy division leader for seasonal to decadal variability and predictability at NOAA’s Geophysical Fluid Dynamics Laboratory (GFDL) in Princeton, New Jersey. From 2011-2021, her work at GFDL included research on seasonal climate prediction, mountain snowpack, extreme storms, water security and climate impacts, including landslides and the market impacts of climate change.Kapnick has served as a climate science
Pick your Poison: NOAA Study Finds Less Air Pollution brings more Hurricanes
to fewer tropical cyclones in the western North Pacific basin.“Air pollution is a big environmental risk to human health and we have made great strides in reducing health risks by reducing particulate air pollution,” said Hiroyuki Murakami, a physical scientist at NOAA’s Geophysical Fluid Dynamics Laboratory and study author. “But reducing air pollution does not always decrease the risk of hazards from tropical cyclones.”While a number of recent studies have examined how increasing greenhouse gas emissions are impacting global tropical cyclone activity, Murakami tackles the
Interview: Tim Leach, Glosten, Discusses Efficient Refit by Design
From 3D laser scanning to Computational Fluid Dynamics, an efficient and successful major mid-life refit such as the one completed on the RV Roger Revelle requires intricate advance design planning, an updated technical toolbelt, as well as the personal touch. Tim Leach, Principal, Naval Architect (Glosten), walks us through the process.Tim Leach, Principal, Naval Architect, Glosten. Image courtesy GlostenWhat work was completed by Glosten on the RV Roger Revelle midlife refit?Glosten has a long history of working with Scripps (SIO) and the Revelle. Building on that knowledge of the Revelle and the
February 2025
