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fluid dynamics
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- 1Juno reveals Earth-sized cyclones swirling at Jupiter's north pole▼Recent observations from the Juno spacecraft reveal the complex fluid dynamics governing Jupiter's north pole, character
New observations from NASA's Juno spacecraft show the intricate fluid dynamics at Jupiter's north pole, where a stable ring of circumpolar cyclones has persisted. Each storm system is nearly the size of Earth, and the findings highlight how these massive atmospheric vortices remain organised without merging, deepening scientists' understanding of giant planet weather.
- 2New asymptotic approach to modelling wind-drift ocean currents▼On large-scale wind-drift ocean currents: An asymptotic approach in spherical coordinates
A mathematical study on large-scale wind-drift ocean currents has been published, presenting an asymptotic approach formulated in spherical coordinates for describing how winds drive major ocean circulation. The work offers a theoretical framework intended to improve the representation of wind-driven currents at global scale, where traditional Cartesian approximations become less accurate. Specialists in physical oceanography and geophysical fluid dynamics are the likely audience for the paper.
- 3NASA's Perseverance rover finds groundwater, lakes and hot fluids on Mars▼NASA's Perseverance Mars rover finds groundwater, lakes, and hot fluids in one place
NASA's Perseverance Mars rover has found evidence of groundwater, lakes, and hot fluids coexisting in a single location on the Red Planet. The finding points to a dynamic ancient environment where liquid water and geothermal activity overlapped, with implications for Mars' past habitability.
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The American Physical Society is highlighting work on quasicrystalline water waves, in which fluid surface waves are arranged in quasi-periodic patterns analogous to the atomic structures of quasicrystals. The demonstration extends quasicrystal physics from solid materials into fluid dynamics, offering a new way to study wave interference and symmetry in liquids.
- 5Scientists Use Bottle Acoustics to Steer Microrobots●Driving Robots with Acoustic Resonance Blow across a glass bottle at the right flow speed, and you’ll excite Helmholtz r
Researchers have developed a new method for controlling microrobots using Helmholtz resonance — the acoustic effect produced when you blow across a glass bottle's neck. By miniaturizing the effect, they can drive the tiny robots with sound generated by airflow. The work was shared with flow visualization imagery, and physics and fluid dynamics enthusiasts are discussing its potential applications.
- 6X-ray microscopy reveals flow behaviour in nanoparticle suspensions▼Multiscale transitional flow in anisotropic nanoparticle suspensions revealed by time-resolved X-ray scatter microscopy
Researchers have used time-resolved X-ray scatter microscopy to reveal multiscale transitional flow in anisotropic nanoparticle suspensions, according to a study published in Nature. The technique captures how these suspensions behave across different length and time scales as they transition between flow regimes. Findings could inform work on complex fluids in materials science and industrial processing.
- 7New Quantum Algorithm Targets Fluid-Flow Bottleneck●New Quantum Algorithm Targets Bottleneck in Fluid-Flow Modeling
Researchers have introduced a new quantum algorithm aimed at a key bottleneck in fluid-flow modeling, a computationally intensive problem in physics and engineering. The development suggests quantum computing could eventually speed up simulations of turbulence and fluid dynamics that strain classical supercomputers. Details on the team behind it and practical timelines remain limited.