dynamical friction


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dynamical friction

See dynamical relaxation.

dynamical friction

[dī¦nam·ə·kəl ′frik·shən]
(physics)
The drag force between electrons and ions drifitng with respect to each other.
Sliding friction, in contrast to static friction.
References in periodicals archive ?
The researchers calculate that without dynamical friction, there would be only a 20 percent chance of finding one of these X-ray sources within 3 light-years of Sagittarius A.
In the process he invoked, known as dynamical friction, frequent close encounters among objects fling the more massive objects toward the center of the crowded environment and less massive objects outward.

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