Setting of Retention Function



Bimodal retention function (Zurmuhl and Durner: 1998) and modified Shiozawa's function (Fujimaki and Inoue, 2003) are supported. Widely-used van-Genuchten's function is expressed with bimodal retention function by setting s as unity.

button
By clicking here, the function is drawn in a graph. You can check if you inputted appropriate values. Text data file ([soil name]_swrc.txt) which holds pressure heads at discretized water contents is created in the same folder as the case file.

Name of this soil
Parameter values for water, heat, and solute movements are stored in soil property file ([soil name].dat) in the "SoilProperties" and the same folder as the case file. You can load soil property file by clicking the button at the right side of the soil name.
In case of Inverse Parameter Estimation
Unless you set somewhat close value as optimum ones, it may take long time to converge or sometimes the iteration stops due to extraordinaly value. It is recommended to load soil property file for similar soil. If so, please input different name, otherwise it is overwritten.

"Fixed" checkbox
Parameter with checkbox at the leftside can be fixed during the inverse parameter estimation.