Effect of air inlet geometry on flooding in a large diameter vertical tube Academic Article uri icon


  • The effect of air inlet geometry on flooding during air-water countercurrent flow in a large diameter vertical tube is studied experimentally. Two different air inlet geometries, i.e. a straight tube inlet and a multi-hole inlet were investigated. The results show that for the same air inlet momentum, flooding may not be achieved with the multi-hole inlet whereas it is observed with the straight tube inlet. The magnitude of air flow rate required to achieve flooding with a multi-hole inlet is considerably greater than that required for a single tube inlet for any given water flow rate. The results further show that the axial velocity decays much faster with a multi-hole inlet as compared to the single tube inlet and thus requires a greater air flow rate to induce flooding. 2010 Elsevier B.V. All rights reserved.

published proceedings

  • Nuclear Engineering and Design

author list (cited authors)

  • Choutapalli, I., & Vierow, K.

citation count

  • 0

complete list of authors

  • Choutapalli, I||Vierow, K

publication date

  • October 2010