Turbulence as a research area investigates the physics, modeling, and prediction of highly irregular, vortical fluid motion characterized by strong nonlinearity, multiscale interactions, and enhanced mixing and dissipation. It encompasses theoretical analysis of the Navier–Stokes equations, development of turbulence closures and reduced-order models, and statistical descriptions such as energy spectra and intermittency. The field spans direct numerical simulations, large-eddy and Reynolds-averaged approaches, and experimental diagnostics to study transition to turbulence, coherent structures, and cascade processes in gases and liquids, with applications ranging from aerodynamics and geophysical and astrophysical flows to engineering systems, combustion, and environmental fluid mechanics.
Researchers have pioneered the use of parallel computing on graphics cards to simulate acoustic turbulence. This type of simulation, which previously required a supercomputer, can now be performed on a standard personal computer. ...
General Physics
Jan 16, 2025
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On an airplane, motions of the air on both small and large scales contribute to turbulence, which may result in a bumpy flight. Turbulence on a much larger scale is important to how stars form in giant molecular clouds that ...
Astronomy
Oct 30, 2024
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How do particles move in turbulent fluids? The answer to this question can be found in a new model presented in a thesis from the University of Gothenburg. The model could help speed up the development of new drugs.
General Physics
Jun 25, 2024
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Fusion energy is released when two light nuclei combine to form a single heavier one (nuclear fusion reaction). Fusion energy-based power generation (fusion power plant) uses the energy generated when deuterium and tritium ...
Plasma Physics
Jun 10, 2024
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In 1883, Osborne Reynolds injected ink into water in a short, clear pipe to observe its movement. His experiments showed that as the input water velocity increased, the flow went from laminar (smooth and predictable) to turbulent ...
Soft Matter
Jun 3, 2024
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Imaging the hot turbulence of aircraft propulsion systems may now be possible with sturdy sheets of composite materials that twist light beams, according to research led by the University of Michigan and Air Force Research ...
Nanomaterials
May 30, 2024
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The turbulent motion of a tumbling river or the outflow from a jet engine is chaotic: that is, it contains no obvious pattern.
General Physics
Mar 20, 2024
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109
We experience turbulence every day: a gust of wind, water gushing down a river, or mid-flight bumps on an airplane.
General Physics
Mar 12, 2024
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Experiments with liquid metals could not only lead to exciting insights into geophysical and astrophysical flow phenomena, such as atmospheric disturbances at the rim of the sun or the flow in the Earth's outer core, but ...
General Physics
Mar 11, 2024
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Every fluid—from Earth's atmosphere to blood pumping through the human body—has viscosity, a quantifiable characteristic describing how the fluid will deform when it encounters some other matter. If the viscosity is higher, ...
Soft Matter
Jan 30, 2024
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