Water Transport

Transport Mechanisms in Water

The transport mechanisms of substances in natural water bodies are considered. Dissolved substances can be regarded as passive in that they do not affect the velocity field of the water bodies. The particles of substances can be regarded as either passive or active. Transport of substances is caused by convection, and/or molecular and turbulent diffusion. The buoyancy forces thus have some infl...

Water vapour transport in CCMs

Validation of water vapour transport in the tropical tropopause region in coupled Chemistry Climate Models S. Kremser, M. Rex, U. Langematz, M. Dameris, and I. Wohltmann Stiftung Alfred-Wegener Institute for Polar and Marine Research, Potsdam, Germany Institut für Meteorologie, Freie Universität Berlin, Berlin, Germany Institut für Physik der Atmosphäre, DLR-Oberpfaffenhofen, Wessling, Germany ...

Hydraulics of Vascular Water Transport

The science of plant water transport is equal parts of physics and biology. Plants have evolved a complex wick system that harnesses the cohesive hydrogen bond energy of liquid water and suppresses the heterogeneous nucleation of caVitation. Trade-offs between making the wick safe against cavitation and implosion, yet efficient in moving water, result in the process being limiting to plant perf...

Water transport controversies--an overview.

Water transport through the kidney

In occupational medicine, measurements of levels within the urine of toxic chemicals, or their metabolites, are used to indicate the level of exposure of workers to chemicals. In a worker’s body the kidney is the main organ taking care of the excretion of unwanted/toxic chemicals and the recovery of useful ones, via three mechanisms: filtration, reabsorption and secretion. We model these proces...