Abstract
The morphological stability of a rotating and solidifying disc is investigated under the assumption that δ, the thickness of the viscous boundary layer, is much larger than δc, the thickness of the solute boundary layer. We find that axisymmetric disturbances with wavelengths comparable to δ respond to non-parallel flow effects and have stability characteristics quite different from disturbances in a parallel flow. These long waves are unstable because of the non-parallel flow and would decay without it. This analysis thus identifies a new mechanism of morphological change induced by flow.
Original language | English (US) |
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Pages (from-to) | 385-396 |
Number of pages | 12 |
Journal | Journal of Crystal Growth |
Volume | 87 |
Issue number | 4 |
DOIs | |
State | Published - Mar 1988 |
Externally published | Yes |
Funding
KB. is pleased to acknowledge the support of the NASA Graduate Student Researchers Program. This work was partially supported by a grant from the National Aeronautics and Space
ASJC Scopus subject areas
- Condensed Matter Physics
- Inorganic Chemistry
- Materials Chemistry