LIQUID DISPLACEMENT OF IMISCIBLE FLUIDS IN TUBES: CAPILLARITY, INERCIA, VISCOSITY RATIO AND RHEOLOGICAL PROPERTY EFFECTS / DESLOCAMENTO DE FLUIDOS IMISCÍVEIS EM TUBOS: EFEITO DE CAPILARIDADE, INÉRCIA, RAZ ÃO DE VISCOSIDADES E PROPRIEDADES REOL OGICAS

AUTOR(ES)
DATA DE PUBLICAÇÃO

2002

RESUMO

There are many important processes in industry that use liquid displacement of imiscible fluids in tubes. Some practical applications include enhanced oil recovery, ce- mentation of drilling wells and coating of internal surfaces of the tubes. For a good understanding of these problems, it is extremely important to study the effect of cap-illarity,inertia and viscosity ratio in these flows. Furthermore, the materials used are frequently flexible polymer molecules. Hence, the study of rheological properties is very important as well. The focus of the thesis is to analyze the fractional mass deposited on the tube wall and the configuration of the interface. The analysis followed two approaches: theoretical and experimental study. The comparison of the two approaches shows a good agreement for Newtonian fluids and a qualitatively good agreement for Non-Newtonian.

ASSUNTO(S)

capillarity superficies livres capilaridade imiscible fluids parametros reologicos razao de viscosidades viscosity ratio fluidos imiscÍveis free surfaces rheological properties

ACESSO AO ARTIGO

Documentos Relacionados