COMPARISON OF EULERIAN AND LAGRANGIAN APPROACHES IN SOIL DEFORMATION AND WATER FLOW

Soil deformation and unsaturated transient water flow in a soil can be predicted using Eulerian and Lagrangian descriptions. This paper describes some aspects of evaluating a numerical model based on the Lagrangian description (LD) with the experimental data obtained from the framework of Eulerian description (ED). Governing equation in the model is derived from Richards' equation by including an overburden potential and transforming into a material coordinate. Computation was performed using Eulerian descriptive hydraulic conductivity (EDHC) and Lagrangian descriptive hydraulic conductivity (LDHC). Results showed that use of EDHC approximates the experimental data slightly better than LDHC. Good agreement was found between computed and measured results on volumetric moisture content of the soil profiled. (A) For the covering abstract see IRRD 881647.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9054105836
• Corporate Authors:

  AA Balkema

  P.O. Box 1675
  Rotterdam,   Netherlands  BR-3000
• Authors:
  • Kim, D J
  • FEYEN, J
  • ANGULO JARAMILLO, R
  • VAUCLIN, M
• Conference:
  • PROCEEDINGS OF THE FIRST INTERNATIONAL CONFERENCE ON UNSATURATED SOILS/UNSAT '95/PARIS/FRANCE/6-8 SEPTEMBER 1995. VOLUME 2
• Publication Date: 1995

Language

• English

Media Info

• Features: References;
• Pagination: p. 751-7

Subject/Index Terms

• TRT Terms: Conferences; Flow; Fluid dynamics; Mathematical models; Moisture content; Percent saturation; Soils
• ITRD Terms: 8525: Conference; 5907: Degree of saturation (mater); 5430: Flow (fluid); 6473: Mathematical model; 5920: Moisture content; 4156: Soil
• Subject Areas: Data and Information Technology; Geotechnology;

Filing Info

• Accession Number: 00729137
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 90-5410-583-6
• Files: ITRD
• Created Date: Dec 12 1996 12:00AM