ZIB

Hits per page

hits 1 - 2 | 2 hits

Sorting

Electronic Resource

Modeling of in-situ biorestoration of organic compounds in groundwater (1991)

Chiang, Chen Y. ; Dawson, Clint N. ; Wheeler, Mary F.

Springer

Transport in porous media 6 (1991), S. 667-702

add to mindlist on the mindlist

Details

ISSN: 1573-1634

Keywords: Modified method of characteristics ; time-splitting ; in situ biorestoration ; adsorption ; contaminant transport

Source: Springer Online Journal Archives 1860-2000

Topics: Geosciences , Technology

Notes: Abstract A convergent numerical method for modeling in situ biorestoration of contaminated groundwater is outlined. This method treats systems of transport-biodegradation equations by operator splitting in time. Transport is approximated by a finite element modified method of characteristics. The biodegradation terms are split from the transport terms and treated as a system of ordinary differential equations. Numerical results for vertical cross-sectional flow are presented. The effects of variable hydraulic conductivity and variable linear adsorption are studied.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00137855

Permalink

Library	Location	Call Number	Volume/Issue/Year	Availability

Others were also interested in ...

Paper (German National Licenses)

Fulltext

Electronic Resource

Godunov-mixed methods for immiscible displacement (1990)

Dawson, Clint N.

Chichester : Wiley-Blackwell

International Journal for Numerical Methods in Fluids 11 (1990), S. 835-847

add to mindlist on the mindlist

Details

ISSN: 0271-2091

Keywords: Higher-order Godunov method ; Mixed finite element method ; Immiscible displacement ; Engineering ; Engineering General

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

Notes: The immiscible displacement problem in reservoir engineering can be formulated as a system of partial differential equations which includes an elliptic pressure-velocity equation and a degenerate parabolic saturation equation. We apply a sequential numerical scheme to this problem where time splitting is used to solve the saturation equation. In this procedure one approximates advection by a higher-order Godunov method and diffusion by a mixed finite element method. Numerical results for this scheme applied to gas-oil centrifuge experiments are given.

Additional Material: 6 Ill.