Dendritic solidification of pure materials from an undercooled melt is studied using the extended finite element method/level set method for modelling the thermal problem and a volume-averaged stabilized finite element formulation for modelling fluid flow. The extended finite element method using evolving enrichment functions allows accurate modelling of the discontinuous thermal conditions at ...

In this paper, a sliding mode control with a proportional integral (PI) sliding surface applied to the hybrid tunnel dryer has been assessed through simulations. A dynamic model of the process was developed specifically for this purpose. The pseudo-bond graph methodology was used in modelling the system, such methodology was very suitable for this thermal process and permits us to establish a m...

We report melting points and other thermal properties of several semiconducting and metallic elements as they are modelled by different empirical interatomic potential models, including Stillinger-Weber (SW), embedded-atommethod (EAM), Finnis-Sinclair (FS) and modified-embedded-atom-method (MEAM). The state-of-the-art free energy methods are used to determine the melting points of these models ...

ROOM is a dynamic thermal simulation model that has been continuously developed at Arup over the last 30 years. It remains one of the principal tools used for thermal modelling within Arup. The programme includes detailed representation of complex geometry and building constructions, radiative heat transfer and air movement. ROOM is particularly suitable for determining environmental conditions...

This paper describes a technique for producing realistic animations of melting objects. The work presented here introduces a method that accurately models both thermal flow and the latent heat during the phase change. The mechanism for energy transfer to the model is via both boundary conditions and radiation. Emphasis is made on accurately modelling the solid object and the method is particula...

In this paper is exposed a set of applications of global sensitivity analysis to building thermal modelling. The aim is to demonstrate the interest of such tools for model analysis and to encourage their use. Indeed, since the last ten years important improvements have been made in the field of sensitivity analysis and especially in ANOVA-based computational methods. Yet, their use in the field...