Partitioned coupling strategies for multi-physically coupled radiative heat transfer problems
Partitioned coupling strategies for multi-physically coupled radiative heat transfer problems
复制标题
多物理耦合辐射传热问题的分区耦合策略
DOI：
10.1016/j.jcp.2015.07.063
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
A. Düster
中科院分区：
文献类型：
--
作者：
G. Wendt;P. Erbts;A. Düster
本文旨在提出有关多物理耦合场（包括热辐射物理）分区求解策略的新方面。特别地，我们专注于电-热-力学问题的分区处理与额外的第四热辐射场。主要目标之一是利用分区方法的灵活性，使不同的仿真软件和求解器的组合。在这篇文章的框架内，我们限制自己的情况下，在有限应变的非线性热弹性，使用温度依赖的材料参数。对于热辐射场，假定辐射面为漫反射面，参与介质为灰色。此外，我们提出了一个强大的和快速的第四场问题的分区耦合策略。采用多种稳定和加速收敛的方法，提高了隐式耦合算法的稳定性和效率。最后，通过数值算例分析了附加热辐射场的有效性和优越性。特别是，我们专注于工业应用，即电场辅助烧结技术的电-热-机械建模。
This article aims to propose new aspects concerning a partitioned solution strategy for multi-physically coupled fields including the physics of thermal radiation. Particularly, we focus on the partitioned treatment of electro–thermo-mechanical problems with an additional fourth thermal radiation field. One of the main goals is to take advantage of the flexibility of the partitioned approach to enable combinations of different simulation software and solvers. Within the frame of this article, we limit ourselves to the case of nonlinear thermoelasticity at finite strains, using temperature-dependent material parameters. For the thermal radiation field, diffuse radiating surfaces and gray participating media are assumed. Moreover, we present a robust and fast partitioned coupling strategy for the fourth field problem. Stability and efficiency of the implicit coupling algorithm are improved drawing on several methods to stabilize and to accelerate the convergence. To conclude and to review the effectiveness and the advantages of the additional thermal radiation field several numerical examples are considered to study the proposed algorithm. In particular we focus on an industrial application, namely the electro–thermo-mechanical modeling of the field-assisted sintering technology.
使用 LBM 和 p-FEM 的三维流固耦合显式模型
DOI：
10.1007/978-3-642-14206-2_11
发表时间：
2010
期刊：
影响因子：
--
作者：
S. Geller;S. Kollmannsberger;M. El Bettah;M. Krafczyk;D. Scholz
通讯作者：
D. Scholz
影响因子：
2.8
作者：
Erbts ;Hartmann ;Düster
通讯作者：
Düster