Experimental Investigation and Modelling of Bulk Boiling for CFD Application
NURETH-14 - 2011 September 25-30


Presented at:
NURETH-14
2011 September 25-30
Location:
Toronto, Canada
Session Title:
F8-1 Flow Visualization

Authors:
Josip Kutnjak (Institute for Nuclear Technology and Energy Systems (IKE))
Rudi Kulenovic (Institute of Nuclear Technology and Energy Systems, Universität Stuttgart)
Eckart Laurien (Institute for Nuclear Technology and Energy Systems (IKE))
  

Abstract

Bulk boiling is a phenomenon characterised by production of vapour inside a liquid away from heating surfaces. This boiling phenomenon is of interest in reactor safety considerations about de-pressurisation of heated pressurised reactor systems. For observation of such flow phenomena a test set-up is available working with de-mineralised water at ambient pressure. The bubble behaviour is visualised within an observation volume and is recorded using a video camera. Vapour formation and bubble behaviour are evaluated using digital video processing. The experimental data are used for comparison with transient computational fluid dynamics simulations.

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