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HORIZONTAL DIFFUSION [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2002-02-19

English

Subject field(s)
  • Air Pollution
  • Atmospheric Physics
CONT

Terrain can influence the transport and diffusion of hazardous gases to a critical degree .... Channelling of winds along valleys can lead to transport of gases with restricted lateral diffusion for considerable distances.

OBS

horizontal: parallel to the plane of the horizon; not vertical.

OBS

diffusion: The permeation of one substance through another, such as gas through gas, liquid, or solid; solute through solvent; liquid through liquid or solid; sand finally solid through solid.

French

Domaine(s)
  • Pollution de l'air
  • Physique de l'atmosphère
CONT

Une cheminée est une source ponctuelle de gaz émis de façon continue [...] A) Formule de Bosanquet-Pearson. Dans le cas d'une source ponctuelle de débit constant, [...] l'équation de diffusion s'écrit : [...]. Bosanquet et Pearson intègrent cette équation en considérant successivement l'effet de la diffusion verticale et de la diffusion horizontale [...].

OBS

[...] une diffusion entre des corps possédant à peu près la même stabilité et, pratiquement, dans une même zone horizontale [...]

Spanish

Campo(s) temático(s)
  • Contaminación del aire
  • Física de la atmósfera
Save record 1

Record 2 2001-08-29

English

Subject field(s)
  • Modelling (Mathematics)
  • Environmental Studies and Analyses
  • Water Pollution
CONT

... Dynamic collapse. The cloud hits the sea floor or reaches a depth where its buoyancy becomes neutral and horizontal spreading dominates ...

French

Domaine(s)
  • Modélisation (Mathématique)
  • Études et analyses environnementales
  • Pollution de l'eau
CONT

[...] le collapse dynamique qui se produit lorsque le nuage percute le fond ou lorsqu'il arrive à une profondeur ou sa flottaison devient neutre, et que la dispersion horizontale devient importante; [...]

Spanish

Save record 2

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