Pw. Egolf et H. Manz, THEORY AND MODELING OF PHASE-CHANGE MATERIALS WITH AND WITHOUT MUSHY REGIONS, International journal of heat and mass transfer, 37(18), 1994, pp. 2917-2924
The continuous-properties model has been developed to numerically solv
e problems of melting and solidification of substances with a mushy re
gion. The new method is applicable to negligibly small mushy regions.
Therefore, it can also be used to numerically calculate the behaviour
of materials showing a discontinuous (first-order) phase transition. A
stress number, comparable to the Reynolds number of fluid flow, can b
e introduced to quantify the difficulty of the computational task.