INVESTIGADORES
STORTI Mario Alberto
artículos
Título:
Numerical modelling of ablation phenomena as two-phase Stefan problems
Autor/es:
STORTI MARIO
Revista:
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
Editorial:
Elsevier
Referencias:
Lugar: Amsterdam, Holanda; Año: 1995 vol. 38 p. 2843 - 2854
ISSN:
0017-9310
Resumen:
A fixed domain numerical scheme for ablation problems based on the
enthalpy formulation and with temperature as the main dependent
variable is presented. A fictitious material which occupies the region
where the material has been removed is introduced, and its material
properties are: null specific heat and any value for the conductivity,
preferably that of the lower temperature phase. The ablating surface is
transformed on an internal interface and the thermal load there is
represented as a concentrated internal heat source on the interface.
The resulting two-phase Stefan problem is discretized with the scheme
presented in a series of previous papers. Finally, several numerical
examples are presented.