Numerical artefacts

Flying ice cube

In molecular dynamics (MD) simulations, the flying ice cube effect is an artifact in which the energy of high-frequency fundamental modes is drained into low-frequency modes, particularly into zero-frequency motions such as overall translation and rotation of the system. The artifact derives its name from a particularly noticeable manifestation that arises in simulations of particles in vacuum, where the system being simulated acquires high linear momentum and experiences extremely damped internal motions, freezing the system into a single conformation reminiscent of an ice cube or other rigid body flying through space. The artifact is entirely a consequence of molecular dynamics algorithms and is wholly unphysical, since it violates the principle of equipartition of energy. (Wikipedia).

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From playlist Support of global climate research

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From playlist Materials and technology

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From playlist Support of global climate research

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From playlist Wooden Toys

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From playlist Ice Stories: Dispatches from Polar Scientists

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From playlist Support of global climate research

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From playlist Support of global climate research

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From playlist Ice Stories: Dispatches from Polar Scientists

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From playlist Stories from Space

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From playlist Ice Stories: Dispatches from Polar Scientists

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From playlist Von Karman Public Talks

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From playlist 2010: European Researchers Night

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From playlist SciShow Kids

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From playlist Questions and Answers with Fraser Cain

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From playlist GeoGebra 3D with AR (iOS): Explorations, Demos, and Lesson Ideas

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From playlist The Future of Everything

Related pages

Frequency | Momentum | Rotation | Rigid body | Algorithm | Equipartition theorem