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In this study, identical experiments of bottom-cooled solidification of water-23 wt% KNO3 and water-24 wt% NH4Cl, which exhibit faceted and dendritic microstructures respectively, were performed. The primary objective of this investigation is to understand the role of solidification morphology (mushy zone) and the flow characteristics on the temper...
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... bottom-cooled solidification cell was made of 8 mm thick perspex glass, as shown in Figure 2. The inner volumetric dimension of the cell was 110 × 70 × 50 mm 3 . ...
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... were performed on NH4Cl and KNO3 materials ( Figure 12). Further, simulations were also performed on low Prandtl number fluids such as alloys of aluminum (dendritic) and silicon (faceted), in order to observe the corresponding thermal fields ( Figure 13). ...
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... reported in current section. Gain in temperature during transition regime during water-15 wt% KNO3 ( Figure A2(a)) and water-18 wt% KNO3 ( Figure A2(b)), which is similar to water-23 wt% KNO3 ( Figure 7). The observation of random convection patterns was further corroborated by performing experiments on a similar binary mixture that exhibits faceted morphology upon solidification. ...
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... reported in current section. Gain in temperature during transition regime during water-15 wt% KNO3 ( Figure A2(a)) and water-18 wt% KNO3 ( Figure A2(b)), which is similar to water-23 wt% KNO3 ( Figure 7). The observation of random convection patterns was further corroborated by performing experiments on a similar binary mixture that exhibits faceted morphology upon solidification. ...
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