Numerical Modeling of Soil Bioventing Processes – Fundamentals and Validation

被引：0
|
作者：
R. Schwarze
J. Mothes
F. Obermeier
H. Schreiber
机构：
[1] TU Bergakademie Freiberg,Institut für Mechanik und Fluiddynamik
[2] TU Bergakademie Freiberg,Institut für Geotechnik
来源：
Transport in Porous Media | 2004年 / 55卷
关键词：
bioventing plants; vadose zone; permeability; macro-pores; laboratory-scale experiments; numerical model; boundary conditions; finite-volume method; air flow; pressure field; streamlines;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A numerical model of bioventing plants equipped with horizontally installed venting wells is developed. It is based on the equations for fluid flows in porous media. These equations are discretized according to the finite-volume method. Different boundary conditions are used in order to describe the influence of injection, extraction and passive wells in the domain under investigation. The numerical model is verified by laboratory-scale experiments, which are also described shortly. The proposed model permits a reasonable description of the flow field of pressurized air between the injection and extraction wells of a soil bioventing unit, even if the porous media are heterogeneous and the permeability of the soil varies. Hints for the calculation of analogous bioventing installations are deduced from the comparison of the numerical with experimental data.
引用
收藏
页码：257 / 273
页数：16
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