Pericleous, K. A. ORCID: https://orcid.org/0000-0002-7426-9999, Moran, G. J., Bounds, S. M., Chow, P. and Cross, M. (1997) Three-dimensional free surface modelling in an unstructured mesh environment for metal processing applications. In: The 1st International Conference on CFD in the Mineral & Metal Processing and Power Generation Industries, 3- 4 July 1997, Melbourne, Australia.

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Abstract

In the casting of metals, tundish flow, welding, converters, and other metal processing applications, the behaviour of the fluid surface is important. In aluminium alloys, for example, oxides formed on the surface may be drawn into the body of the melt where they act as faults in the solidified product affecting cast quality. For this reason, accurate description of wave behaviour, air entrapment, and other effects need to be modelled, in the presence of heat transfer and possibly phase change. The authors have developed a single-phase algorithm for modelling this problem. The Scalar Equation Algorithm (SEA) (see Refs. 1 and 2), enables the transport of the property discontinuity representing the free surface through a fixed grid. An extension of this method to unstructured mesh codes is presented here, together with validation. The new method employs a TVD flux limiter in conjunction with a ray-tracing algorithm, to ensure a sharp bound interface. Applications of the method are in the filling and emptying of mould cavities, with heat transfer and phase change.

Item Type:	Conference or Conference Paper (Paper)
Additional Information:	Subsequently published in Applied Mathematical Modelling journal (Elsevier, vol. 22, iss. 11., Nov. 1998). Full text can be found by following this link http://dx.doi.org/10.1016/S0307-904X(98)10033-1
Pre-2014 Departments:	School of Computing & Mathematical Sciences
Last Modified:	02 Mar 2019 15:49
URI:	http://gala.gre.ac.uk/id/eprint/63

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