Articles tagged with Fluid Jets
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.
The 76th annual meeting of the American Physical Society's Division of Fluid Dynamics will bring together over 3,500 scientists from around the world to present new research on fluid dynamics. The conference will feature a scientific program with over 3,200 presentations and a gallery of fluid motion visual arts competition.
Researchers have developed a new spectroscopy technique called filament- and plasma-grating-induced breakdown spectroscopy (F-GIBS), which improves the sensitivity of trace metal detection in liquid samples. The technique uses fluid jets to analyze aqueous solutions and achieves high precision by avoiding detrimental influences of liqu...
Researchers found that softer nozzle materials produce more stable jets across a wide range of flow rates, enabling users to control the breakup length and hit targets more accurately. This is achieved through the use of passively-deforming nozzles, which can deform as liquids pass through them.
Researchers at the University of Central Florida found that face masks can reduce airborne pathogens' travel distance by more than half, suggesting they can effectively prevent airborne diseases. The study's findings could aid in managing responses to pandemics like COVID-19.
A University of Illinois study examines the transport of aerosolized organic materials from bursting bubbles into the air. The research found that the viscosity and thickness of oil layers control the shape, size, and velocity of resulting bursting jets, with implications for contaminant dispersal and climate modeling.
A team of UBCO researchers developed a recipe for a clean-burning, power-boosting aircraft fuel by adding graphene oxide nanomaterials to ethanol. This mixture improves the burn rate by about eight per cent, reducing carbon footprint and increasing engine power.
Engineers at MIT and the University of Twente study water jet impacts on droplets to inform needle-free injection systems. They developed a model predicting fluid jet behavior in human skin, aiming to minimize damage.
Researchers used computational models to investigate how liquid drops behave on surfaces. They found that the presence of a substrate makes breakup more likely, leading to three possible scenarios: collapse into one droplet, break up into multiple droplets, or re-form back into a single droplet.
Mechanical engineers at Keio University developed a fluid dynamics simulation to study the impact of water droplets against surfaces, enabling efficient and damage-free cleaning. The research provides insights into the trade-off between particle removal efficiency and surface damage.
The Flow Focusing technology has increased data acquisition per second in XFEL analysis, allowing for ultra-rapid and powerful X-ray pulses. GDVN technology has enabled the efficient transmission of protein microcrystals, enabling Serial Femtosecond Crystallography and revolutionizing molecular biology research.
By modeling the breakup of an oscillating stream of liquid, researchers have gleaned a better understanding of how sprays form. The study found that an oscillating stream breaks into a wider spray of finer droplets than a straight jet, improving fuel-air mixing efficiency.
Researchers at Tokyo University of Agriculture and Technology have developed a device that can generate microjets with high viscosity, similar to honey. This innovation overcomes the limitation of current inkjet printing methods, allowing for more precise control over fluid flow and properties.
Researchers have solved the mystery of how bombardier beetles produce their explosive defense mechanism, revealing a complex process controlled by a flexible membrane and valve. The beetle's ability to superheat and expel the liquid creates a powerful spray that is highly effective against predators.
A research team led by Alberto Fernandez-Nieves has figured out how to convert the standard chaotic waveform to a stable helical form. By controlling the viscosity and speed of the secondary liquid surrounding the jets, they were able to stabilize the structure associated with the whipping behavior.
Researchers have verified the classical Landau-Squire theory in a nanoscale fluid jet, measuring flow rates of tens of pico liters per second. The findings suggest that the Navier-Stokes equations hold true at molecular scales, with potential applications in ultra-low-volume injectors and microfluidic logic circuits.
Researchers studied silicone oil jets bouncing off each other, finding that high-speed flow can inhibit mixing. The study's findings have implications for fuel efficiency in space rockets.
A team of researchers found that partially filled spheres exhibit a predictable first bounce but a thud-like second bounce. This phenomenon occurs due to the transfer of energy from the ball-liquid system into a liquid jet, which dampens the rebound force.
Researchers at Helmholtz Association have developed a unique X-ray measuring chamber, LiXEdrom, which enables the study of liquids without membrane distortion. This breakthrough allows for precise information about material structure and has significant implications for protein studies.
Chemical engineers at Princeton University developed a method for shooting stable jets of electrically charged liquids from a wide nozzle, producing lines just 100 nanometers wide. This technique offers better resolution than ink-jet printing and far more speed and ease than conventional nanotechnology.
The ASU geology team is collecting and analyzing data from the Galileo spacecraft, which shows strong evidence of a liquid ocean under Europa's surface. The images transmitted by the spacecraft reveal terrain types similar to an iceberg found on Earth near Europa's surface.
Researchers find that collision of liquids at high speed creates intense local heating, generating highly reactive intermediates for destroying contaminants in water. This method has potential as a simple way to purify water contaminated with low levels of chemical waste.
A Johns Hopkins researcher proposes that a tiny jet of liquid inside a bubble could be the cause of sonoluminescence, releasing energy as light. The theory suggests that the fluid's fracture creates a foothold for noble gas atoms to initiate luminescence.