Observation of flow regimes and transitions during a columnar solidification experiment

Fluid Dynamics Research

Volumn 46, Issue 4, 2014, Pages

  Stefan Kharicha, M ^a   Kharicha, A ^a   Wu, M ^a   Ludwig, A ^a  

^a UNIVERSITY OF LEOBEN   (Austria)

Author keywords

[No Author keywords available]

Indexed keywords

COLUMNAR SOLIDIFICATION; FLOW REGIMES;

EID: 84907691473     PISSN: 01695983     EISSN: None     Source Type: Journal    
DOI: 10.1088/0169-5983/46/4/041424     Document Type: Article

References (27)

1. Ahmadein M, Wu M, Stefan-Kharicha M, Kharicha A and Ludwig A 2014 A numerical study of the influence of pouring technique on the as-cast structure of Al-Cu ingots Mater. Sci. Forum in press
2. Beckermann C and Viskanta R 1988 Double-diffusive convection due to melting Int. J. Heat Mass. Transfer 31 2077-89
3. Beckermann C and Viskanta R 1989 An experimental study of solidification of binary mixtures with double-diffusive convection in the liquid Chem. Eng. Comm. 85 135-56
4. Bejan A 1993 Heat Transfer (New York: Wiley)
5. Bizon C, Werne J, Predtechensky A A, Julien K, McCormick W D, Swift J B and Swinney H L 1997 Plume dynamics in quasi 2D turbulent convection Chaos 7 107-24
6. Chen F 1997 Formation of double-diffusive layers in the directional solidification of binary solution J. Cryst. Growth 179 277-86
7. Chen C F and Chen F 1991 Experimental study of directional solidification of aqueous ammonium chloride solution J. Fluid Mech. 227 567-86
8. Christenson M S, Bennon W D and 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 Transf. 32 69-79
9. Flemings M C 1974 Solidification Processing (New York: McGraw-Hill)
10. Kharicha A, Stefan-Kharicha M, Wu M and Ludwig A 2012 Exploration of a double diffusive convection during dendritic solidification with a combined volume-averaging and cellular automata model IOP Conf. Series: Mater. Sci. Eng. 33 012115
11. Kharicha A, Stefan-Kharicha M, Ludwig A and Wu M 2013a Simultaneous observation of melt flow and motion of equiaxed crystals during solidification using a dual phase particle image velocimetry technique. Part 2: relative velocities Metall. Mater. Trans. A 44 650-60
12. Kharicha A, Stefan-Kharicha M, Ludwig A and Wu M 2013b Simultaneous observation of melt flow and motion of equiaxed crystals during solidification using a dual phase particle image velocimetry technique. Part 1: stages characterization of melt flow and equiaxed crystals motion Metall. Mater. Trans. A 44 661-8
13. Könözsy L, Eck S, Stefan-Kharicha M, Wu M and Ludwig A 2009 Experimental and numerical investigations of NH4Cl solidification in a mould. Part 2: numerical results Int. J. Cast Metals Res. 22 172-4
14. Lesoult G, Combeau H and Moukassi M 1993 Interactions between solidification and fluid flow. Effects on cast structures and segregations J. Phys. IV France 3 813-22
15. Magirl C S and Incropera F P 1992 Flow and morphological conditions associated with unidirectional solidification of aqueous ammonium chloride J. Heat Transfer 115 1036-43
16. Neilson D G and Incropera F P 1991 Unidirectional solidification of a binary alloy and the effects of induced fluid motion Int. J. Heat Mass Transf. 34 1717-32
17. Neilson D G and Incropera F P 1993 Effect of rotation on fluid motion and channel formation during unidirectional solidification of binary alloy Int. J. Heat Mass Transf. 36 489-505
18. Saffie M G M, Tan F L and Tso C P 2013 A study on the snowing phenomenon in binary alloy solidification Applied Thermal Engineering 50 562-71
19. Sample A and Hellawell A 1982 The effect of mold precession on channel and macro-segregation in ammonium chloride- water analog castings Met. Trans. B 13 495-501
20. Sample A and Hellawell A 1984 The mechanism of formation and prevention of channel segregation during alloy solidification Met. Trans. A 15 2163-73
21. Shih Y-C and Tu S-M 2009 PIV study on the development of double-diffusive convection during the solidification effected by lateral cooling for a super-eutectic binary solution Appl. Therm. Eng. 29 2773-82
22. Shih Y-C, Tu S-M and Chiu C-C 2013 Supressing freckles during solidification due to periodic motion of top liquid layer Appl. Therm. Eng. 50 1055-69
23. Solomon T H, Hartley R R and Lee A T 1999 Aggregation and chimney formation during the solidification of ammonium chloride Phys. Rev. E 60 3063-71
24. Stefan-Kharicha M, Eck S, Könozsy L, Kharicha A and Ludwig A 2009 Experimental and numerical investigations of NH4Cl solidification in a mould. Part 1: experimental results Int. J. of Cast Metal Res. 22 168-71
25. Tan F L 2005 An experimental study on channels formation during solidification of aqueous ammonium chloride Appl. Therm. Eng. 25 2169-92
26. Wu M, Ludwig A and Fjeld A 2010a Modeling mixed columnar-equiaxed solidification with melt convection and grain sedimentation-part 1: model description Comp. Mater. Sci. 50 32-42
27. Wu M, Ludwig A and Fjeld A 2010b Modeling mixed columnar-equiaxed solidification with melt convection and grain sedimentation-part 2: illustrative modeling results and parameter studies Comp. Mater. Sci. 50 43-58