Advanced Computational Methods in Heat Transfer: 6th(Computational Studies)

Presenting state-of-the-art approaches to numerical solutions for heat transfer problems, this text is designed for all scientists and engineers actively involved in developing innovative approaches or solving a variety of industrial problems. The contributions featured come from an international conference series, "Advanced Computational Methods in Heat Transfer" and focus on well-established and efficient numerical techniques. Topics covered include: conduction including nonlinear problems; diffusion-convection; fire and combustion simulation; thermal problems in porous media fibres and composites; metal casting, welding, forging and other processes; energy power systems; advances in heat transfer software; hot spots and thermal shocks; gas turbine heat transfer; and modelling and experiments in heat transfer.

Table of Contents:
Keynote Address: Computational convective and conductive heat transfer. Section 1: Diffusion-Convection - Numerical simulation of flow and thermo-kinetics during the autoclave-assisted cure of thick laminated composites; Unstable thermocapillary flow inside a NaNO3 float zone; The influence of the solid inclusions on the heat transport in the precrystallization-zone; Mass and heat transfer in connection with the storage of hydrogen in metal hydrides; Ventilation model for integration into DEROB; Oscillatory double diffusive convection similarity between parallel and cross temperature and solutal gradients. Section 2: Conduction including non-linear problems - Thermo-elastic contact and heat transfer between plates and shells through the heat-conducting layer; A numerical model of heat transfer in a system 'plate casting-mold-surroundings'; Non-linear convective phenomena under the film vapour condensation. Section 3: Natural and forced convection - Contact-free generated forced convection through heat field rotation; Modeling of the conjugate heat transfer from a window adjacent to a louvered shade; Three dimensional numerical simulation of thermal convection in a Czochralski melt; Numerical simulation of turbulent natural convection in a vertical channel asymmetrically heated with constant heat flux. Section 4: Thermal radiation - A novel first-order scheme for numerical two-dimensional radiative transfer analysis; Finite element formuation of the discrete ordinates method for coupled conductive and radiative heat transfer in bidimensional complex geometries; Calculation of mirror form factors value. Section 5: Fire and combustion simulation - A severe bouyancy problem analysis and solution using CFD; Numerical analysis of radiation heat transfer in combustion of bio fuels. Section 6: Phase change - Numerical solution of Stefan problems in annuli; Ice melting driven by natural convection in the vicinity of the density maximum; Influence of turbulent natural convection in simulating crystallization of II-VI semiconductors; Dynamic leak increase in a steel wall caused by corium discharge; Criticism of the classical mass balance for multiphase flow; On some factors having an effect on heat exchange and stability of the process of automated pulling from melt of alkali halide crystals; The effect of aspect ratio on the development of convective motion in a bottom heated enclosure containing ice and water. Section 7: Thermal problems in porous media fibres and composites - Convection heat transfer of power-law fluids past a wedge embedded in a porous medium; Thermal properties evaluation with a transient method in powder melts and model describing different physico-chemical phenomena comparison. Section 8: Metal casting, welding, forging and other processes - Numerical simulation of solidification in twin-belt caster; Numerical simulation of droplets formation in GMAW welding; Simulation of welding processes based on micro models. Section 9: Heat and mass transfer - A three-dimensional study of the heat and mass transfer within the irradiation space of the HIFAR fuel element; A comparison between computational and experimental results for a research combustor; Bouyancy effects of heat and mass transfer in developing laminar flow in a horizontal pipe; Viscous liquid film flows over a vertical corrugated surface. Calculation of heat and mass transfer. Section 10: Advances in computational heat transfer methods - ESTIMA: A thermal simulation software for the optimal design of printed circuit board in the automotive industry; HTADAPT: An h-adaptive finite element model for heat transfer; Numerical methods for the determination of thermal properties by means of transient measurements; Formulation of successive integration method in heat conduction; Using spectral methods, reduction techniques and model synthesis to simulate thermal systems behaviour; Hot spots caused by contact inhomogeneities in 4H- and 6H-SiC Schottky structures; Analytically-numerical method for temperature fields in multilayered system. Section 11: Heat exchangers - Numerical simulation of transients in shell and tube refrigerant evaporator Modified thermal calculations of a geothermal double-pipe heat exchanger with insulation immersed into geothermal deposit; Large eddy simulation of turbulent flow and heat transfer in compact heat exchangers; Modelling of compact evaporators and condensers; Fluid to fluid heat exchanger: An improved design using a twisted flat oval tube; Numerical investigation of plate heat exchanger surfaces. Section 12: Heat transfer in manufacturing and industry - A finite volume method model for prediction of the thermal camber of work rolls; Calculation of losses in electric power cables as the base for cable temperature analysis. Section 13: Cooling of electrical and electronic equipment - Domain optimization in FEM modelling of power cable heat transferMinimisation of heat sink mass using mathematical optimization; A computational method to design heat sinks. Section 14: Coupling different numerical methods - Heat transfer in flat-plate solar air-heating collectors; Analysis of temperature fluctuations in a turbulent flow over a backward-facing step; Computational methods in food processing: Applications in heat transfer. Section 15: Modelling and experiments in heat transfer - The influence of self-generated magnetic fields on electric conduction in inertially confined plasma; Influence of material thermal properties on instantaneous heat flux measurements using an eroding thermocouple; Attainment of more precise parameters of a mathematical model for cooling flat and cylindrical hot surfaces by nozzles; Heat transfer of tubes in cross foam flow; Ceiling water panel heating-cooling systems. Experimental and simulated study of the performances; Numerical modeling for ablation of absorbing dielectrics.