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Solutal convection during directional solidification of a binary alloy: Influence of side walls (1988)

Guérin, R. Z. ; Billia, B. ; Haldenwang, P. ; [et al.]

[S.l.] : American Institute of Physics (AIP)

Physics of Fluids 31 (1988), S. 2086-2092

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ISSN: 1089-7666

Source: AIP Digital Archive

Topics: Physics

Notes: In this study the effect of rigid side walls on the onset of solutal convection in the melt is investigated for upward solidification of a binary alloy. The physics is described by the Navier–Stokes equations in the Boussinesq approximation and by the balance of solute, which is coupled with the appropriate boundary conditions. By using a Tau–Chebyshev spectral method the numerical resolution of the perturbed system has been carried out for two alloys: lead–tin, which is the reference in the literature, and lead–thallium, which is currently under study. For both cases the lateral confinement has a stabilizing effect for all the aspect ratios that have been considered.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.866661

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