Marcelo Souza de Castro

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Desenvolvimento Espacial de

uma Onda de Perturbação em

Escoamento Bifásico

Escoamento Bifásico Óleo

Óleo

Pesado

Pesado –

– Água no Padrão

Água no Padrão

Estratificado

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Motivação

Objetivo

Estabilidade

Hidrodinâmica do Padrão

Estratificado ao longo de

linhas de transporte de

petróleo;

Teórico:

◦

Modelagem do escoamento

bifásico através do modelo

de dois fluidos;

◦

Usar método das

características para verificar

o desenvolvimento espacial

de uma onda de perturbação;

◦

Definição de um critério de

transição espacial.

Introdução

transição espacial.

Experimental:

◦

Montar bancada

experimental para comparar

com resultados teóricos.

(3)

Escoamento Estratificado

(4)

Modelagem

(5)

Modelagem

Método Híbrido

◦

Baseado no deslizamento entre as fases.

s>1

Óleo mais rápido que

água;

Velocidade da onda menor que a do

óleo

(6)

Modelagem

Método Híbrido

◦

Baseado no deslizamento entre as fases.

s<1

Água mais rápido que

água;

Velocidade da onda menor que a do

água

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Modelagem

Método das Características

CH

CL

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Modelagem

(9)

Modelagem

(10)

Modelagem

Método das Características

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Modelagem

• Método das Características

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Resultados Numéricos

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Experimental

Readequação da gangorra;

Projeto e montagem de bocal para

escoamento estratificado;

Projeto e montagem de sistema de

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Experimental

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Próximas Etapas

Bancada Experimental;

Análise pelo método das

Características da equação da onda;

Levantamento de banco de dados;

Utilização do método de Gaster

(1962) para critério de transição

espacial.

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