Oscillatory-nonoscillatory transitions for inclined cellular patterns in three-dimensional directional solidification
نویسندگان
چکیده
منابع مشابه
Experimental observation of oscillatory cellular patterns in three-dimensional directional solidification.
We present a detailed analysis of oscillatory modes during three-dimensional cellular growth in a diffusive transport regime. We ground our analysis primarily on in situ observations of directional solidification experiments of a transparent succinonitrile 0.24wt% camphor alloy performed in microgravity conditions onboard the International Space Station. This study completes our previous report...
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Pattern formation at the solid-liquid interface of a growing crystal was studied in directional solidification using a perturbation technique. We analyzed both experimentally and numerically the stability range and dynamical selection of cellular arrays of ‘‘doublets’’ with asymmetric tip shapes, separated by alternate deep and shallow grooves. Applying an initial periodic perturbation of arbit...
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We study the stability of a planar solid-melt boundary during directional solidification of a binary alloy when the solid is being periodically vibrated in the direction parallel to the boundary (or equivalently, under a far field uniform and oscillatory flow parallel to the planar boundary). The analysis is motivated by directional solidification experiments under the low level residual accele...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 2020
ISSN: 2470-0045,2470-0053
DOI: 10.1103/physreve.102.032803