A FINITE ELEMENT DISTRIBUTED CATCHMENT MODEL, I. ANALYTICAL BASIS

The analytical basis for the formulation of a distributed catchment model within the flexible framework of the finite-element method is described. The consitutive equations for the mathematical model are obtained by assuming overland flow conditions in the main drainage paths and through flow conditions elsewhere in the catchment. The solutions in the space and time domains are carried out by using the finite-element method and the finite-difference method, respectively. A hypothetical uniform flow plane is used as an example to compare the numerical solution with that obtained by an analytical method. The same example is used to study the sensitivity of the numerical solution to parameter variations. The accuracy of the solution, the limitations of the procedure and the potential applications of the approach are indicated. /Author/

• Corporate Authors:

  Elsevier

  Radarweg 29
  Amsterdam,   Netherlands  1043 NX
• Authors:
  • Jayawardena, A W
  • WHITE, J K
• Publication Date: 1977-8

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 269-286
• Serial:
  • Journal of Hydrology
  • Volume: 34
  • Issue Number: 3/4

Subject/Index Terms

• TRT Terms: Drainage basins; Finite differences; Finite element method; Flow equations; Mathematical models; Surface drainage
• Old TRIS Terms: Highway drainage
• Subject Areas: Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00164100
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 29 1977 12:00AM