fluid-dynamics

Scientific Data, Published online: 13 June 2026; doi:10.1038/s41597-026-07490-y A comprehensive CFD lifecycle dataset for marine vessel hydrodynamics

Birds in flocks, bacteria and cells: In many collective systems, individual elements respond to only part of their surroundings, seemingly defying Newton’s third law of motion—action equals reaction. These exceptions are known as nonreciprocal interactions. A Dresden physics team working with Roderich Moessner, a founding member of the Würzburg–Dresden Cluster of Excellence ctd.qmat, has now [&#8…

Scientific Reports, Published online: 12 June 2026; doi:10.1038/s41598-026-56523-4 Lattice boltzmann method for investigation of flow through square in-line cylinders with transverse oscillation

I had a large container full of water placed in a high location above a staircase leading to the rooftop, and I could not lift or move it. I tried to empty it using an 8-meter-long hose connected to a ...

Scientific Reports, Published online: 12 June 2026; doi:10.1038/s41598-026-57554-7 Effect of waist drum axial position on energy separation performance of Maxwell structured tubes

Whether the dust borne on the violent winds of a tornado or the sugar grains in a swirled cup of coffee, the behavior of particles carried along in turbulence is subject to some similarities -- all of them difficult to predict at scale. As described in a recent publication in the Proceedings of the National Academies of Science, a research team led by Los Alamos National Laboratory scientists has…

Simcenter Flightstream 26.1 is now available for aerospace and marine CFD engineers seeking faster workflows and deeper aerodynamic and hydrodynamic…

TotalSim is excited to expand our simulation capabilities with Altair ultraFluidX, a powerful addition to the CFD tools we offer clients. As a specialized GPU-native solver, ultraFluidX delivers transformative speed and efficiency for external aerodynamics and aeroacoustics simulations, particularly in automotive, motorsports, and transportation applications. Built on the Lattice Boltzmann Method…

Nature, Published online: 10 June 2026; doi:10.1038/s41586-026-10632-2 Near-infrared fluorescent carbon nanotubes exhibit light-induced quantum friction in water, in which exciton interactions slow nanoscale motion and enable optical control of diffusion and fluid dynamics.

According to new research, Trionda would show less unpredictable movements in actions such as corner kicks or free kicks. However, in powerful and long-distance clearances it would lose range.

I'm curious about the correct way to symmetrise in curvilinear coordinates. In e.g. the Navier-Stokes equations, one often refers to the spatial velocity gradient $$2\mathbf{D}:=\nabla v + \left(\...

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 […]