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Bifurcation analysis of cellular interfaces in unidirectional solidification of a dilute binary mixture

Bifurcation analysis of cellular interfaces in unidirectional solidification of a dilute binary mixture
Bifurcation analysis of cellular interfaces in unidirectional solidification of a dilute binary mixture
Analytical bifurcation theory is used to study interface patterns in the unidirectional solidification of a dilute binary mixture. Armbruster and Dangelmayr's classification of bifurcation equations equivariant under the diagonal action in ?2 of the symmetry group O(2) is used to show that the local bifurcation structure of the model long-wave evolution equation derived by Riley and Davis is equivalent to that of a codimension-one normal form. Examination of the bifurcation structure of the normal form then leads to a description of the development of three-dimensional interface patterns during unidirectional solidification. The general methodology underlying this study is also discussed, and conditions under which the method can be applied to other evolution equations are derived and clearly stated.
0036-1399
78-95
Impey, M.D.
a95f93d8-93b9-4adb-9e55-624e39f6f2bd
Riley, D.S.
02306a8f-b410-456c-9c6b-1d083ee9010a
Wheeler, A.A.
eb831100-6e51-4674-878a-a2936ad04d73
Impey, M.D.
a95f93d8-93b9-4adb-9e55-624e39f6f2bd
Riley, D.S.
02306a8f-b410-456c-9c6b-1d083ee9010a
Wheeler, A.A.
eb831100-6e51-4674-878a-a2936ad04d73

Impey, M.D., Riley, D.S. and Wheeler, A.A. (1993) Bifurcation analysis of cellular interfaces in unidirectional solidification of a dilute binary mixture. SIAM Journal on Applied Mathematics, 53 (1), 78-95.

Record type: Article

Abstract

Analytical bifurcation theory is used to study interface patterns in the unidirectional solidification of a dilute binary mixture. Armbruster and Dangelmayr's classification of bifurcation equations equivariant under the diagonal action in ?2 of the symmetry group O(2) is used to show that the local bifurcation structure of the model long-wave evolution equation derived by Riley and Davis is equivalent to that of a codimension-one normal form. Examination of the bifurcation structure of the normal form then leads to a description of the development of three-dimensional interface patterns during unidirectional solidification. The general methodology underlying this study is also discussed, and conditions under which the method can be applied to other evolution equations are derived and clearly stated.

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Published date: 1993

Identifiers

Local EPrints ID: 809
URI: http://eprints.soton.ac.uk/id/eprint/809
ISSN: 0036-1399
PURE UUID: bf8c8858-990b-4933-bc1b-77fd5045f22d

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Date deposited: 26 Mar 2004
Last modified: 11 Dec 2021 13:19

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Contributors

Author: M.D. Impey
Author: D.S. Riley
Author: A.A. Wheeler

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