An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian
فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک
M. Heydari-Malayeri - Paris Observatory
HomepageNumber of Results: 22 Search : instability
secular instability nâpâydâri-ye diryâz Fr.: instabilité séculaire Instability caused by a slow dissipation of energy. → secular; → instability. |
Taylor-Couette instability nâpâydâri-ye Taylor-Couette Fr.: instabilité de Taylor-Couette A hydrodynamic instability in the → Taylor-Couette flow that arises when the rotation velocity of the fluid exceeds a critical value. The instability arises for → Taylor numbers larger than about 1700. At the beginning the fluid elements will move in simple rolls, but turbulence in the form of complex spirals will appear with increasing rotation velocity. |
