frictionless flow
1Balanced flow — In atmospheric science, balanced flow is an idealisation of atmospheric motion. The idealisation consists in considering the behaviour of one isolated parcel of air having constant density, its motion on a horizontal plane subject to selected… …
2Dimensionless momentum-depth relationship in open-channel flow — Contents 1 Momentum in Open Channel Flow 1.1 What is Momentum? 1.2 Momentum in a Rectangular Channel 1.3 Why is Momentum Important? …
3pyroclastic flow — ▪ volcanism in a volcanic eruption, a fluidized mixture of hot rock fragments, hot gases, and entrapped air that moves at high speed in thick, gray to black, turbulent clouds that hug the ground. The temperature of the volcanic gases can… …
4superfluidity — [so͞o΄pər flo͞o id′ə tē] n. the phenomenon, exhibited by liquid helium at temperatures below 2.18°K, of flowing without friction and having very high thermal conductivity superfluid [so͞opərflo͞o′id] n., adj. * * * See superfluid. * * * Unusual… …
5Supersolid — A supersolid is a spatially ordered material (that is, a solid or crystal) with superfluid properties. Superfluidity is a special quantum state of matter in which a substance flows with zero viscosity (or resistance to flow). Liquid helium 4 has… …
6Oceanic physical-biological process — Sea water is 827 times denser than air Due to the higher density of sea water (1,030 kg m 3) than air (1.2 kg m 3), the force exerted by the same velocity on an organism is 827 times stronger in the ocean. When waves crash on the shore …
7Wind gradient — In common usage, wind gradient, more specifically wind speed gradientcite book | last = Hadlock | first = Charles | title = Mathematical Modeling in the Environment | publisher = Mathematical Association of America | location = Washington | year …
8physics — /fiz iks/, n. (used with a sing. v.) the science that deals with matter, energy, motion, and force. [1580 90; see PHYSIC, ICS] * * * I Science that deals with the structure of matter and the interactions between the fundamental constituents of… …
9KRIES — GERMANY (see also List of Individuals) 6.10.1853 Roggenhausen/PL 30.12.1928 Freiburg/D Johannes von Kries graduated from the University of Leipzig in 1875. He was from 1876 to 1877 an associate of Hermann von Helmholtz (1821 1894) at Berlin… …
10Wind shear — Wind shear, sometimes referred to as windshear or wind gradient, is a difference in wind speed and direction over a relatively short distance in the atmosphere. Wind shear can be broken down into vertical and horizontal components, with… …
