Hot melt splash upon impingement of a water jet

As a pre-requisite for powerful steam explosion following the spread of molten high-temperature material over the bottom of water pool, a premixed zone must be formed with certain contents of melt, water, and vapour. Experimental observations indicate that melt spreading is featured by the formation...

Full description

Saved in:
Bibliographic Details
Published inJournal of physics. Conference series Vol. 1666; no. 1; pp. 12060 - 12065
Main Authors Yakush, S E, Sivakov, N S, Melikhov, V I, Melikhov, O I
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.11.2020
Subjects
Hydraulic jets
Impingement
Physics
Premixing
Steam explosions
Water masses
Online AccessGet full text

Cover

More Information
Summary:As a pre-requisite for powerful steam explosion following the spread of molten high-temperature material over the bottom of water pool, a premixed zone must be formed with certain contents of melt, water, and vapour. Experimental observations indicate that melt spreading is featured by the formation of periodic melt splashes which can be responsible for the phase premixing. The paper considers one of the key phenomena involved in this process, namely, the splash of hot melt due to impingement of a high-velocity water jet. Numerical simulations are performed in the axisymmetric formulation, revealing the whole process of water-melt interaction, as well the development of melt flow leading to its splash. Parametric study is presented for the melt splash height dependence on the water mass and velocity.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1666/1/012060