Abstract
This article presents a simple technique for temperature visualization using liquid crystals in an aqueous solution during the process of cooling and solidification. This method provides a clear picture of the role of double-diffusive convection in producing vertical compositional and density stratification in an initially homogeneous liquid during solidification.
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References
Beckermann, C.; Viskanta, R. 1988: Double-diffusive convection during dendritic solidification of a binary mixture. Physicochem. Hydrodynam. 10, 195–213
Bergman, T. L.; Ungan, A. 1988: A note on lateral heating in a double-diffusive system. J Fluid Mech. 194, 175–186
Chen, C. F.; Turner, J. S. 1980: Crystallization in a double-diffusive system. J. Geophys. Res. 85, 2573–2593
Christenson, M. S.; Bennon, W. D.; Incropera, F. P. 1989: Solidification of an aqueous ammonium chloride solution in a rectangular cavity. II. Comparison of predicted and measured results. Int. J. Heat Mass. Transfer 32, 69–79
Hiller, W. J.; Kowalewski, T. A. 1987: Simultaneous measurement of temperature and velocity fields in thermal convective flows. In: Flow Visualization IV (ed. Veret, C.), 617–622. Washington: Hemisphere
Moffat, R. J. 1990: Some experimental methods for heat transfer studies. Exp. Therm. Fluid Sci. 3, 14–32
Rhee, H. S.; Koseff, J. R.; Street, R. L. 1984: Flow visualization of a recirculating flow by rheoscopic liquid and liquid crystal techniques. Exp. Fluids 2, 57–64
Shiina, Y.; Akino, N.; Kunugi, T.; Fujimura, K. 1990: Visualization of flow and temperature fields of natural convection in a hemisphere heated from below. J. Flow Visualization Soc. Jpn. 10, 41–46
Thompson, M. E.; Szekely, J. 1989: Density stratification due to counterbuoyant flow along a vertical crystallization front. Int. J. Heat Mass Transfer 32, 1021–1036
Turner, J. S. 1980: A fluid-dynamical model of differentiation and layering in magma chambers. Nature 285, 213–215
Turner, J. S.; Gustafson, L. G. 1981: Fluid motions and compositional gradients produced by crystallization or melting at vertical boundaries. J. Volcanol. Geothermal, Res. 11, 93–125
Worster, G.; Leitch, A. M. 1985: Laminar-free convection in confined regions. J. Fluid Mech. 156, 301–319
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Nishimura, T., Fujiwara, M. & Miyashita, H. Visualization of temperature fields and double-diffusive convection using liquid crystals in an aqueous solution crystallizing along a vertical wall. Experiments in Fluids 12, 245–250 (1992). https://doi.org/10.1007/BF00187302
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DOI: https://doi.org/10.1007/BF00187302