数値解析・応用解析セミナー
5月7日(木) 15:00 -- 16:00 Craig Douglas (University of Wyoming, 京都大学)
``Implementations and Interpretations of a Fast Water Infiltration Model''
＜研究発表要旨＞
The interaction between surface and subsurface hydrology flow systems is
important for water supplies. Accurate, efficient numerical models are
needed to estimate the movement of water through unsaturated soil. Water
infilitration from the surface to the groundwater level is usually simulated
using a model based on either Richards equation or a reservoir model.
In this talk, we present a model derived from Darcy's law known as the
Talbot-Ogden (T-O) model. Instead of one of the usual 3D models, we have a
depth versus water content based on porosity domain. While Richards equation
does not accurately model situations with sharp fronts or saturated soils,
T-O does. Both Richards equation and T-O are mass balance conservative. We
derive the model from Darcy's Law and show the difference between T-O and
Richards equation.
Finally, we report on very fast implementations that run at least an order
of magnitude faster than conventional infiltration methods.
This is joint work with Mookwon Seo, Derrick Cerwinsky, Krishan Gahalaut,
and Fred Ogden.
セミナー室: 京都大学 工学部2号館 2階203号室
（応用解析学講座セミナー室）
●工学部2号館は、キャンパスマップでは「京都大学本部構内 54番建物」です。
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セミナー連絡先: 京都大学大学院 情報学研究科 複雑系科学専攻
磯 祐介 e-mail; iso@i.kyoto-u.ac.jp