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Comparison of Drainage Equations for the Gravity Drainage of Stratified Profiles
Author(s) -
Watson K. K.,
Whisler F. D.
Publication year - 1976
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1976.03615995004000050012x
Subject(s) - drainage , nonlinear system , algebraic equation , range (aeronautics) , mathematics , algebraic number , geology , mathematical analysis , physics , engineering , ecology , quantum mechanics , biology , aerospace engineering
The output from a computer‐based numerical analysis of the gravity drainage of a sand profile through an underlying impeding layer is used as the data for testing the manner in which algebraic equations are capable of describing the stratified drainage process. The comparisons indicate that no single equation is satisfactory in describing the wide range of nonlinear behavior that occurs with eight cases analyzed. However, when specific coefficients determined from a least squares analysis are used in an equation of the Jackson and Whisler type satisfactory correspondence is achieved.