نتایج جستجو برای: water retention curve
تعداد نتایج: 732045 فیلتر نتایج به سال:
Estimation of Water Retention Curve for Soils of Bahia, Brazil, Based on Soil Particle-Size Analysis
In this paper, we propose an extension for a model of unsaturated soils developed by Van Genuchten (1980) and obtain thermos-hydric to study the influence temperature on water retention curve. A brief presentation is described using independent parameter modeling method. The proposed hydrometric makes it possible predict, from experimental measurements carried out drainage-humidification paths ...
A Differential Evolution (DE) is introduced to predict the parameters of the soil water retention curve (SWRC) and it is configured for reliability and efficiency with the Unsaturated Soil Hydraulic Property Database (UNSODA). The main investigated dataset is 235 samples from lab_drying_h-t table and the testing shows that the data resource is reliable and steady. Some specific statistical comp...
Residual soils result from chemical weathering, so their characteristics depend on environmental factors, in addition to origin, topography, drainage and geological age. In the unsaturated condition, behavior of is conditioned by suction, which refers state soil under reduced pressure. The aim this study compare water retention curve fitting equations tropical through filter paper technique ana...
In addition to kinematic description of biological reaction, flow pattern plays an important role in designing constructed wetlands. This study investigates the effects of flow distribution on constructed sub-surface horizontal flow wetland with a length of 26 m, width of 4 m and 1% bed slope in order to understand internal hydraulic functioning patterns. Inlet configuration is selected as a va...
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