Living matter breaks symmetry when cellular flows form and break down collective patterns, challenging conventional liquid-crystal physics. The researchers developed an active 'nemato-polar' model, introducing polar self-propulsion into a nematically ordered system, which spontaneously creates a permanent spiral trajectory.
Researchers are using AI to model complex turbulent flows, including wind, aerosols, and combustion, to quantify uncertainty in foundation models. The project aims to create a physics-constrained AI foundation model for complex flows important to energy systems.
Scientists developed laser-carved microvalves to protect fragile brain catheters from backflow, enabling smooth delivery of therapies. The valves regulate fluid flow through geometry without moving parts, suppressing reverse pressure surges by up to 82%.
Dr. Karin Schwarzenberger aims to directly visualize and measure flows at gas-liquid interfaces using custom-developed tracer particles, shedding light on mass transport in technological and natural systems. The project tackles the Marangoni effect and its impact on interface mobility and mass transfer.
Researchers at Tohoku University have developed a new method for creating efficient micromixers inside polymer fibers, enabling rapid mixing of minute amounts of liquid. The twisted microchannels fabricated using this method promote mixing even at low Reynolds numbers, making it suitable for various applications.
The HydroGym platform uses reinforcement learning to train AI agents for actively controlling fluid flows, reducing drag and friction by up to 65%. The platform enables the systematic study of complex flows and improves the efficiency of airplanes, wind turbines, and other applications.
Black corals' cilia perform various roles, including food transport and internal nutrient circulation. Cilia facilitate oxygen delivery and waste removal through ventilation.
A research group at Tohoku University has overturned the long-standing assumption that smoother surfaces produce less aerodynamic drag. By applying Distributed Micro-Roughness, they achieved a world-first experimental demonstration of up to 43.6% drag reduction.
A team of mathematicians used custom-designed 'silly sprinklers' to experimentally answer the long-standing Feynman's Sprinkler Problem. They found that the momentum flux theory provides a clear solution, supporting its applicability for both forward and reverse modes, as well as variously shaped sprinklers.
Researchers from the University of Warsaw studied the physical properties of espresso brewing and found that at higher pressures, the coffee behaves like a poroelastic material, exhibiting nonlinear pressure dynamics. This effect affects the dissolution rate of coffee and can be used to improve the brewing process.
A new study by New York University mathematicians shows that flocks and schools behave like soft crystalline materials, with individual birds and fish serving as “atoms” that are evenly spaced in a lattice-like formation. This understanding offers insights into the hydrodynamic and aerodynamic interactions crucial in aerospace and auto...
A recent study published in JAMA found that prone positioning in infants with moderate to severe bronchiolitis receiving high-flow nasal cannula support did not significantly reduce escalation of care. The study suggests that further research is warranted due to the wide confidence interval around the observed odds ratio.
Researchers at New York University have created a method to manipulate particles and structures using water waves, allowing for the transverse transport and trapping of submerged objects. By controlling the shape of the wave field, objects can be moved perpendicularly to the direction of wave propagation.
A new approach combines MRI scans and AI tools to measure fluid flow in the brain, shedding light on the glymphatic system’s mechanics. The study reveals two main ways the system washes away particles, with one way moving faster than the other.
The new facility enables scientists to observe and measure detonation forces in unprecedented detail, shedding light on industrial safety risks and potential breakthroughs. Researchers aim to develop safer designs and protocols by examining detonation disasters like the Buncefield Fire.
A new machine-learning method detects sudden changes in fluid behavior, improving simulation capabilities for everyday applications like weather prediction and nuclear reactor safety. This enables faster design testing, real-time adjustments, and reduced computational burden.
Researchers at KTH Royal Institute of Technology found that small vortices can create larger swirls of flow, challenging the traditional view of turbulence development. The study could impact industries such as aircraft engineering and mechanical heart valve design.
Researchers at Virginia Tech's Fralin Biomedical Research Institute are studying how fluid flow contributes to the spread of glioblastoma tumors. They will use focused ultrasound and advanced MRI techniques to build a map of fluid flow in the whole brain and test the effectiveness of drug delivery.
The scientific program features nearly 300 sessions and thousands of presentations on various fluid dynamics topics. The conference will also include a visual arts competition, Gallery of Fluid Motion, with a traveling exhibit on display until January 2026.
Thousands of scientists will gather to present new research on fluids at the 78th American Physical Society meeting. The conference features a scientific program with thousands of presentations on various fluid dynamics topics.
Virginia Tech researchers create method combining MRI, fluid dynamics, and algorithm to identify hidden glioblastoma cells. The technique uses fluid flow patterns to predict tumor re-growth, allowing for more aggressive surgical approaches. This technology has potential to improve cancer treatment outcomes
Researchers have developed a technique to create spin in liquid droplets using ultrasound waves, concentrating solid particles suspended in the liquid. This allows for the creation of novel technologies for biomedical applications and research on rotating systems.
Researchers at Flinders University demonstrate how the Earth's magnetic field influences fluid flow, creating exciting possibilities for nano-processing and sustainable green chemistry. The study reveals that fluid flow coupled with magnetic fields can result in the preference of one chirality over the other.
Researchers from Nankai University developed an on-chip liquid crystal integrated terahertz vortex metasurface enabling multi-channel near-far field control with parity breaking. The device generates multiple vortex modes, improving device freedom and tunability.
Kyushu University researchers have successfully recreated the fluid dynamics of flowing biological cells using numerical simulations. The study reveals that capsule position depends on deformation and pulsation frequency, enabling precise cell manipulation in research and potential applications in artificial heart development.
Researchers optimized pour-over coffee brewing by maximizing pour height and laminar flow, resulting in stronger coffee with fewer beans. The study suggests using thick water jets, like those from standard gooseneck kettles, to achieve optimal mixing between water and grounds.
Viscoelastic fluids exhibit a unique relaxation time that interacts with turbulence, resulting in an unexpected meandering motion. This interaction leads to three distinct flow states: low, middle, and high diffusivity states, with the high-diffusivity state significantly enhancing heat transfer efficiency.
Researchers developed a machine learning-powered fluid simulation model that significantly reduces computation time without compromising accuracy. The new surrogate model maintains the same level of accuracy as traditional particle-based simulations while reducing computation time from approximately 45 minutes to just three minutes.
Researchers Mohamed Gad-el-Hak and James J. Riley from VCU and the University of Washington found that Van Gogh's painting does not adhere to Kolmogorov's theory of turbulent flow. Instead, they argue that the swirling patterns in 'The Starry Night' are a result of its abstract nature.
A study from the Marine Biological Laboratory proposes that physical forces, such as fluid dynamics, played a key role in the evolution of multicellular life. The researchers found that cooperative feeding among Stentor cells increased the flow rate of water into their mouths, allowing them to capture more prey. However, the benefits o...
Researchers explore fluid dynamics of stentors' cooperative feeding behavior, discovering that grouping together generates more powerful flows to sweep in food from a greater distance. This finding could provide insight into how single-cell organisms evolved into complex organisms like humans.
Dr. Rita Okoroafor's research integrates geochemistry, geomechanics, and reservoir engineering to improve understanding of fluid-rock interactions in subsurface technologies. Her work enhances hydrogen storage efficiency, optimizes geothermal reservoir performance, and improves CO2 storage security.
A team of engineers at the University of Texas at Dallas has developed a new surface design that collects and removes condensates rapidly, challenging conventional theory. The discovery reveals a limitation in existing heat transfer models and inspires a new theory to explain the phenomenon.
Deborah Levin and her Ph.D. student Irmak Taylan Karpuzcu conducted the first 3D simulations of hypersonic flows, exposing new disturbances in the interaction between gases and surfaces. The findings provide insights into the design considerations for hypersonic vehicles.
Researchers discovered that pedestrians form neat lanes in crossing roads only until people start veering off at extreme angles, after which the flow becomes disordered. The team's theory predicts that critical angle of 13 degrees marks the point where crowds collapse from order to disorder.
A team of mathematicians studied crowd flow and developed a way to predict when pedestrian paths become disorganized. They found that an angular spread of around 13 degrees is the threshold for transition, beyond which the flow becomes less efficient and potentially more dangerous.
A new study using a microfluidic device found that certain infections may not be as resistant to antibiotics as previously thought. The researchers tested three different antibiotic agents against Pseudomonas aeruginosa and found a gradient of antibiotic activity dependent on the flow rate.
Researchers discovered how bacterial swarms transition from organized movement to chaotic flow as confinement radius increases. The study reveals intermediate states between order and turbulence through large-scale experiments, computer modeling, and mathematical analysis. These findings provide insights into the universal properties o...
Researchers from Kumamoto University and colleagues found that left-right symmetry-breaking occurs prior to node formation, indicating a tightly regulated program for asymmetry. This study demonstrates the involvement of physical mechanisms in biological patterning using quantitative biophysical parameters.
Scientists have discovered that channels carved by rivers have distinct curves compared to those cut by lava or ice. The research could be used as a diagnostic tool for sinuous channels on other worlds with unknown fluid origins.
Researchers have developed a new technique for quantum sensing using nanodiamonds in microdroplets, which can detect trace amounts of certain ions and molecules. This method uses flowing droplets and carefully modulated microwaves to ignore unwanted background noise and add precision.
Researchers at SwRI and U-M have created a new methane flare burner using additive manufacturing and machine learning that eliminates 98% of methane vented during oil production. The burner's design, with a complex nozzle base and impeller, allows for efficient combustion even in challenging crosswind conditions.
Researchers discovered that hot and burning droplets can bounce off cool surfaces due to the formation of an invisible air cushion. This phenomenon has potential applications in slowing fire spread and improving engine efficiency.
A team of scientists has developed a new method to monitor undersea sediment flows, allowing them to track the longest-runout sediment flows ever recorded. The study reveals that turbulent mixing with seawater influences the behavior of these powerful canyon-flushing turbidity currents over long distances.
Researchers found that the eddy-mean kinetic energy exchange term is separated into three parts: one associated with cross-stream variation, one with along-stream variation, and one with mean flow direction. This new framework describes eddy-mean energy exchange without accounting for forces or physical properties.
Researchers at PNNL developed a mini flow battery test system that requires less starting material while delivering comparable performance to standard lab-scale systems. This innovation reduces time and resources needed for testing new battery materials, accelerating the discovery of grid energy storage technology.
Researchers have designed a compact, high-efficiency flow battery test system that requires an order of magnitude less starting material while delivering results comparable to standard lab-scale systems. The mini flow cell design is geared towards rapid screening and development of new battery materials, reducing the time and resources...
Researchers have developed a 3D printing technique to create liquid crystal elastomers with controllable alignment, leading to new possibilities for shape-morphing materials. By tuning nozzle design, print speed, and temperature, they achieved uniform molecular-scale alignment, translating to prescribed mechanical behavior.
Researchers at the University of Illinois have developed a new technique to eliminate fluid flow dead zones in electrodes used for battery-based seawater desalination. The tapered flow channel design improves fluid flow by two to three times, making it more efficient than current reverse osmosis methods.
Kyushu University researchers create a microwave flow reaction device that converts complex polysaccharides into simple monosaccharides, producing glucose. The device utilizes a continuous-flow hydrolysis process, where cellobiose is passed through a sulfonated carbon catalyst heated using microwaves.
A new technique has been demonstrated for self-assembling electronic devices, enabling faster and less expensive production. The method uses a directed metal-ligand reaction to create semiconductor materials with tunable properties.
Researchers tested ODS FeCrAl alloys in a liquid LiPb environment and found that they form durable γ-LiAlO2 layers, which provide strong resistance to corrosion. The study's findings are crucial for improving material durability in fusion reactors and high-temperature energy systems.
The MIT team fabricated a simple water filter modeled after the mobula ray's plankton-filtering features and studied its performance. They found that the ray's filtering features are broadly similar to industrial cross-flow filters, which could inform design of water treatment systems.
Researchers at University of Wisconsin-Madison have invented a water-soluble chemical additive that improves the performance of bromide aqueous flow batteries, making them more efficient and long-lasting. The additive solves issues such as ion leakage and gas formation, enabling the use of these batteries for grid-scale storage.
A team of physicists studied the unique motion of Champati seeds rolling down slopes, revealing a spread-out, then collapse-like behavior akin to rock avalanches. The research may provide valuable insights into geological flows and contribute to resolving challenges in this area.
Scientists will present new research on bio-inspired floating offshore wind farms, harbor seals' whisker sensing abilities, and Manu jumping. The conference features over 300 sessions and nearly 2,800 presentations.
Research in Physics of Fluids reveals that smokers seated farther from ventilation inlets experience lower levels of pollution. Body heat causes more absorption of cigarette pollution, suggesting empty spaces are the best to choose.
A team of researchers from the University of Washington has developed a flexible pipe with an interior helical structure inspired by shark intestines, which can keep fluid flowing in one direction without flaps. The design rivaled and exceeded Tesla valves, a one-way fluid flow device invented over a century ago.
Researchers at Eindhoven University of Technology, in collaboration with MIT and PSI, developed a new method to visualize the inner workings of redox flow batteries using neutron imaging. The technique provides extraordinary moving images that help understand the battery's performance and durability.
Roman Gaydukov developed a method to model fluid flow around rotating disks with small surface irregularities, reducing computational time and cost. The approach can accurately predict fluid flow behavior in chemical reactions and has potential applications in industry.