Effective Suction Control for Infiltration Water Sampling in Unsaturated Soils
نویسندگان
چکیده
منابع مشابه
Estimation of Water Retention Curve for Unsaturated Fine Soils
In order to obtain the soil water retention curve of an unsaturated soil which is defined as the relationship between water content and suction, extensive laboratory tests are essential. These laboratory tests are usually costly and time consuming. Moreover, for most practical problems, it has been found that approximate unsaturated soil properties are adequate for analysis. Thus, empirical pro...
متن کاملComparison of 1D models of water flow in unsaturated soils
Understanding the interaction between soil, vegetation and atmosphere processes and groundwater dynamics is of paramount importance in water resources planning and management in many practical applications. Hydrological models of complex water resources systems need to include a number of components and should therefore seek a balance between capturing all relevant processes and maintaining dat...
متن کاملNumerical analysis of Richards' problem for water penetration in unsaturated soils
Unsaturated flow of soils in unsaturated soils is an important problem in geotechnical and geo-environmental engineering. Richards’ equation is often used to model this phenomenon in porous media. Obtaining appropriate solution to this equation therefore provides better means to studying the infiltration into unsaturated soils. Available 5 methods for the solution of Richards’ equation mostly f...
متن کاملComparison of Finite Difference Schemes for Water Flow in Unsaturated Soils
Flow movement in unsaturated soil can be expressed by a partial differential equation, named Richards equation. The objective of this study is the finding of an appropriate implicit numerical solution for head based Richards equation. Some of the well known finite difference schemes (fully implicit, Crank Nicolson and Runge-Kutta) have been utilized in this study. In addition, the effects of di...
متن کاملSensitivity Analysis and Validation for Numerical Simulation of Water Infiltration into Unsaturated Soil
A FORTRAN code for liquid water flow in unsaturated soil under the isothermal condition was developed to simulate water infiltration into Yolo light clay. The governing equation, that is, Richards' equation, was approximated by the finite-difference method. A normalized sensitivity coefficient was used in the sensitivity analysis of Richards' equation. Normalized sensitivity coefficient was cal...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: JOURNAL OF JAPAN SOCIETY OF HYDROLOGY & WATER RESOURCES
سال: 2006
ISSN: 1349-2853,0915-1389
DOI: 10.3178/jjshwr.19.221