rate instability

См. также в других словарях:

• instability — i. A state of the atmosphere in which a parcel of air will continue to rise, if for any reason, it is pushed up. Any instability in the atmosphere means turbulent conditions exist. The environmental lapse rate (ELR) in this case will be higher… …   Aviation dictionary

• instability —   the continued rising of an air mass as it is warmer than the surrounding, or environmental, air. This is especially common after the rising mass has passed the dew point and so cools at the saturated adiabatic lapse rate as the release of… …   Geography glossary

• Electrothermal instability — NOTOC The electrothermal instability (also known as the ionization instability or Velikhov instability in the literature) is a magnetohydrodynamic (MHD) instability appearing in magnetized non thermal plasmas used in MHD converters. It was first… …   Wikipedia

• Convective instability — For a more general discussion of the same phenomenon, see Convective available potential energy. This article incorporates public domain text created by the US government. In meteorology, convective instability or stability of an airmass refers… …   Wikipedia

• convective instability — The state of the atmosphere in which there is a high relative humidity at low levels and a low relative humidity at upper levels, such that if a low layer of air is lifted bodily, the ELR (environmental lapse rate) value through the layer will… …   Aviation dictionary

• Rayleigh–Taylor instability — The Rayleigh–Taylor instability, or RT instability (after Lord Rayleigh and G. I. Taylor), is an instability of an interface between two fluids of different densities, which occurs when the lighter fluid is pushing the heavier fluid. [citation… …   Wikipedia

• Lapse rate — The lapse rate is defined as the rate of decrease with height for an atmospheric variable. The variable involved is temperature unless specified otherwise.[1][2] The terminology arises from the word lapse in the sense of a decrease or decline;… …   Wikipedia

• Two stream instability — The two stream instability is a very common instability in plasma physics. It can be induced by an energetic particle stream injected in a plasma, or setting a current along the plasma so different species (ions and electrons) can have different… …   Wikipedia

• Two-stream instability — The two stream instability is a very common instability in plasma physics. It can be induced by an energetic particle stream injected in a plasma, or setting a current along the plasma so different species (ions and electrons) can have different… …   Wikipedia

• Total fertility rate — Not to be confused with birth rate. A world map showing countries by fertility rate, 2005 2010 …   Wikipedia

• Jeans instability — The Jeans instability causes the collapse of interstellar gas clouds and subsequent star formation. It occurs when the internal gas pressure is not strong enough to prevent gravitational collapse of a region filled with matter. For stability, the …   Wikipedia