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Streamline diffusionGiven an advection-diffusion equation, streamline diffusion refers to all diffusion going on along the advection direction. Additional recommended knowledgeExplanationIf we take an advection equation, for simplicity of writing we have assumed , and we may add a diffusion term, again for simplicty, we assume the diffusion to be constant over the entire field.
Giving us an equation on the form: We may now rewrite the equation on the following form: The term below is called streamline diffusion. Crosswind diffusionAny diffusion orthogonal to the streamline diffusion is called crosswind diffusion, for us this becomes the term: Categories: Fluid dynamics | Diffusion |
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Streamline_diffusion". A list of authors is available in Wikipedia. |