Solução das equações de Saint-Venant por um modelo de elementos finitos espaço-temporal

The partial differential equations of Saint-Venant are the mathematical expression used to describe phenomena of free surface transient flows being an example of pratical importance the flood wave routing in rivers. The main purpose of this thesis is to present a solution for such equations through the use of a modal of finite elements in space and time. The model adopts quadratic interpolation functions in space and linear functions in time. The procedure produces an implicit scheme in which the non-linear terms are initially approximated by their known values at the previous time step and then corrected by the means of an iterative scheme. The efficiency of this scheme was tested by its application to simple problems with known solutions and, as a final test, the model was applied to simulate a real case of flood wave routing in the Uruguai River.

Grantor dc:publisher

Universidade Federal do Rio de Janeiro

Year dc:date.issued

1991

Author dc:creator

• Vasconcelos, Evandro Leite

Advisor dc:contributor.advisor

• Wrobel, Luiz Carlos

• Engenharia Civil

Statement dc:rights

• Acesso Aberto

Language dc:language

por

Handle dc:identifier.uri

http://hdl.handle.net/11422/3987

OAI identifier oai:identifier

oai:pantheon.ufrj.br:11422/3987