Experimental and numerical investigation of stratified gas–liquid flow in downward-inclined pipes

Autores

  • Jose Luiz Horacio Faccini Instituto de Engenharia Nuclear - IEN/CNEN
  • Jurandyr de Souza Cunha Filho Fundação de Apoio à Escola Técnica - FAETEC/RJ
  • Paulo Augusto Berquó de Sampaio Instituto de Engenharia Nuclear - IEN
  • Jian Su Programa de Engenharia Nuclear - PEN/COPPE

Palavras-chave:

stratified flow, gas-liquid flow, inclined pipes, CFD, numerical simulation

Resumo

This paper reports an experimental and numerical investigation of stratified gas–liquid two-phase flow in downward inclined circular pipes. Reynolds averaged Navier–Stokes equations with the κ–ω turbulence model were solved by using the least-square finite-element method to simulate the stratified gas–liquid flow. Experiments were carried out in an air–water two-phase flow loop with a test section of 7.8 m long circular pipe with 1 inch inner diameter for 3 downward-inclined angles, −2.5◦, −5.0◦, and −10.0◦. The height of the liquid layer was measured by using a pulse–echo ultrasonic technique with a single fast transducer and a visualization technique with a high-speed digital camera.

Referências

FACCINI, J. L. H. et al. Experimental and numerical investigation of stratified gas–liquid flow in downward-inclined pipes. Heat Transfer Engineering, Oxfordshire, United Kingdom, n. 36, p. 943–951, 2015.

LIOUMBAS, J. S.; PARAS, S. V.; KARABELAS, A. J. Co-current stratified gas–liquid down-flow-influence of the liquid flow field on interfacial structure. International Journal of Multiphase Flow, Amsterdam, v. 31, p. 869–896, 2005.

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Publicado

2021-07-08

Edição

Seção

Engineering and Reactor Safety