In this study, a mathematical model is introduced to simulate the coupled heat transfer equation and Stefan condition occurring in moving boundary problems such as the solidification process in the continuous casting machines. In the continuous casting process, there exists a two-phase Stefan problem with moving boundary. The control-volume finite difference approach together with the boundary ...

This paper presents a methodology for optimizing skylight design with the considerations of thermal comfort, daylight availability and energy performance by integrated daylight and thermal simulation. Dynamic thermal modelling programmed IES and daylight simulation engine Radiance are used as simulation tools to study energy performance of a shopping mall atrium with a skylight on the roof ...

Simulation of a quantum many-body system at finite temperatures is crucially important but quite challenging. Here we present an experimentally feasible algorithm assisted with continuous-variable for simulating systems temperatures. Our has time complexity scaling polynomially the inverse temperature and desired accuracy. We demonstrate by phase diagram Kitaev model. It found that crossover ri...

The TEM3P module of ACE3P, a parallel finite-element electromagnetic code suite from SLAC, focuses on the multiphysics simulation capabilities, including thermal and mechanical analysis for accelerator applications. In this paper, thermal analysis of coupler feedthroughs to superconducting rf (SRF) cavities will be presented. For the realistic simulation, internal boundary condition is implemen...

In this paper we present an efficient algorithm for the thermal simulation and design of multichannel power semiconductor devices. The simulation workflow starts with a finite element discretization of the heat transfer equation. In a second step, the resulting large system of differential equations is approximated with a reduced order model by means of the Arnoldi algorithm. The reduced order ...

  In this study, a new method for joining aluminum tubes in subsurface structures using steel converting and aluminum welding are presented and reviewed. But near the weld area is under high thermal cycle and will cause residual stresses in heat affected zone. Therefore for assessment of proposed connection from the perspective of residual stress by using the finite element method welding of tu...

It is anticipated that in the future, increasing power densities and resultant temperatures will often be the dominant limit to processor performance and a significant component of cost. Dynamic thermal management (DTM) techniques address this issue by allowing the thermal solution to be designed for a temperature less than the peak. Evaluating DTM and other processor thermal properties require...

A computational model was developed to study the thermal conductivity of single-walled carbon nanotube (SWNT)-polymer composites. A random walk simulation was used to model the effect of interfacial resistance on the heat flow in different orientations of SWNTs dispersed in the polymers. The simulation is a modification of a previous model taking into account the numerically determined thermal ...