Pore-size distribution of a porous medium and its application

AuthorHo, Ying-yeung
Call NumberAIT Thesis no. 306
Subject(s)Porous materials
NoteA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering of the Asian Institute of Technology, Bangkok, Thailand
PublisherAsian Institute of Technology
AbstractThis theoretical investigation considered the characteristics of pore-size distribution of a medium and its applications. An equation relating the effective saturation with capillary pressure was proposed as the pore-size distribution function of the medium. Theoretical equations of relative hydraulic conductivity for wetting and non-wetting fluids were developed as functions of capillary pressure and saturation using the pore-size distribution proposed in this study. The theoretical equations were then verified by experimental data obtained by previous investigators. The pore-size distribution function was also applied to solve two case studies of drainage problems, viz., one-dimensional vertical drainage of initial saturated media and two-dimensional drainage into open ditches or tile drains. The analyses were made by considering the porous media to consist of a bundle of capillary tubes and a pad of Hele-Shaw models respectively for the one-dimensional and two-dimensional drainage problems. The total discharges through the porous media were then equal to the summation of the discharge in each capillary tube and Hele-Shaw model. The pore-size distribution was used as the weight function in the summation. The theoretical solution of the one-dimensional drainage was verified using numerical and experimental results from previous investigators.
Year1970
TypeThesis
SchoolStudent Research Before 1980
DepartmentOther Field of Studies (No Department)
Academic Program/FoSThesis (Year <=1979)
Chairperson(s)Arbhabhirama Anat
Examination Committee(s)Silvester, Richard ;Subin Pinkayan
Scholarship Donor(s)Asian Institute of Technology
DegreeThesis (M. Eng.) - Asian Institute of Technology, 1970


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