fluid-dynamics

Nature Communications, Published online: 06 June 2026; doi:10.1038/s41467-026-73154-5 Superballistic transport is a known hydrodynamic effect where viscous electrons can move collectively. Here, the authors provide evidence of superballistic electron flow under microwave irradiation in point contacts induced by edge magnetoplasmons.

This record deposits the referee-hardened manuscript package for Carrier Universality and Global Smoothness for the Periodic 3D Navier–Stokes Equations, a constraint-formalism impossibility proof of Fefferman’s periodic Navier–Stokes statement (B). The manuscript presents a non-PDE-native mathematical route to the official periodic problem. It does not claim to derive a new vortex-stretching esti…

While standard astrophysics reduces the universe to a passive, mechanical void—treating black holes and white holes as isolated gravitational anomalies or mathematical time-reversals—the Justika Framework executes a radical ontological paradigm shift. This doctrine posits that the cosmos operates as a highly regulated, living macro-organism governed by a biological-computational architecture. At …

Researchers discovered a way to reverse the direction of energy flow in turbulence, challenging a theory that has stood for more than 80 years. The finding could open new possibilities for controlling ocean currents, improving medical technologies, and enhancing climate forecasting.

ABSTRACT For over 150 years, the field of fluid mechanics has been defined by two major unsolved problems: the lack of a universal transition criterion between smooth and chaotic flow, and the inability to mathematically describe the development of turbulence. This work resolves both issues as one continuous, connected physical process. We present the Universal Hydrodynamic Principle in two inter…

ABSTRACT This work forms the second part of The Universal Hydrodynamic Principle, building directly upon the discovery of the Universal Stability Threshold established in Part 1. For centuries, turbulence has been described as random, chaotic, and unpredictable, with Werner Heisenberg famously calling it the hardest problem in physics. This difficulty arose because previous theories lacked knowle…

Dolphins are such fast and agile swimmers that, naturally, scientists have long wanted to understand how they swim so well. A recent study draws on numerical simulation to analyze the flow a dolphin creates when flapping its tail. The resulting flow is highly turbulent–researchers were only able to simulate up to a fraction of a […]

I know g at that altitude is 0.221 m/s² but I'm not sure how to integrate the increasing gravitational acceleration as the object approaches Earth. I attempted using kinematic equations but g is not constant during the fall.

Steps to recreate this: Wash your hands with water, and touch a smooth surface, e.g., a MacBook trackpad, a touchscreen smartphone, metal, glass or ceramic surface. Your fingers will grip these ...

NASA's X-59 jet is on the verge of finally breaking the sound barrier as the agency looks forward to the aircraft's first supersonic flight this month.

Next article: Cocoa SIMBL Plugins Previous article: NSOpenGLContext and one-shot Tags: fluid simulation In the spring and summer of 2005, I wrote my Master's thesis on high-performance real-time 3D fluid simulation and volumetric rendering. The basics of the fluid simulation that I used are straightforward, but I had a very difficult time understanding it. The available reference materials were a…

"It is clear that the conventionally available conceptual methods for teaching how the Coriolis force affects motion across the surface of the earth are too infrequent, inaccurate, or incomplete to construct the desired conceptual mastery." Jared Arnell, student of Boyd Edwards, 2022... Read more

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I am unable to understand what the cause of the static pressure drop is in the context of Bernoulli's Principle. I've understood that "when a fluid flows into a narrower tube, the volume of ...

Detonative combustion offers significant thermodynamic advantages for high‑speed propulsion, motivating the development of detonation‑based combustors for hypersonic flight. Among these, oblique detonation wave (ODW) engines require extremely high combustor velocities to achieve steady wave stabilization. While most prior experimental and numerical studies have focused on planar two‑dimensional g…

Shock tubes offer a uniform, highly controllable, repeatable test environments to simulate combustion, atmospheric re-entry, and supersonic and hypersonic flow phenomena. These devices offer limited test times which are commonly employed for study in the high pressure, high temperature reflected region or studying the incidentally shocked region which may feature relatively low pressures. This wo…

This paper presents the design and experimental characterization of the jet exit velocity from a supersonic nozzle injecting into a low-pressure vacuum chamber using Particle Image Velocimetry (PIV). The PIV method is employed to overcome limitations encountered in prior experiments characterizing a jet-in-crossflow, such as qualitative shock visualization and insufficient data on jet exit proper…

Viable forms of propulsion for practical hypersonic flight are of great interest in modern times, of which supersonic combustion ramjets(scramjets) are a very advantageous option. Compared to ramjets, which are severely limited by increasing total pressure loss and dissociation effects, scramjets offer a much more efficient form of propulsion in the Mach 6 – 8 regime. Despite this, a common and u…

Industrial heating processes account for nearly 28\% of global CO2 emissions, and fossil fueled boilers predominate in high temperature applications. Industrial electrification can be an effective solution when combined with renewable energy sources. Increasing steam generation efficiency and at the same time maintaining system compactness is a significant challenge in industrial thermal processe…

Sperm cells move through fluids that should stop them almost instantly, yet new research suggests they succeed by exploiting unusual properties of active living matter. A sperm cell should not be a strong swimmer. At microscopic scales, fluid does not behave like water in a pool. It acts more like a thick barrier, stopping motion [...]