4·î13Æü(ÌÚ)  15:30 -- 17:00 Prof.Jozef Kacur (Comenius University, Slovakia)
             ``Solution on inverse problems in infiltration 
               --  determination of soil parameters --''
¡ã¸¦µæȯɽÍ׻ݡä
A new method is suggested to determine soil parameters. These parameters are 
substantially used for scaling the mathematical model and numerical treatment
of porous media flow in unsaturated-saturated media. The governed equation 
(Richards equation) is highly nonlinear and degenerate -with two types of 
degeneracies. The method can be used to determination of datas for porous 
media type equations. The method is substantially based on movement of free 
boundary (wetness front) and fixed domain transformation. The inverse problem
is treated using the concept of automatic differentiation.