非一致性界面热流固耦合作用的整体求解

殷亮; 蒋军成; 张立翔

doi:10.3879/j.issn.1000-0887.2012.02.006

非一致性界面热流固耦合作用的整体求解

doi: 10.3879/j.issn.1000-0887.2012.02.006

南京工业大学城市建设与安全工程学院,南京 210009;

详细信息

通讯作者:
殷亮(1978—),男,江苏泰兴人,讲师,博士生(联系人.Tel:+86-25-58877526;E-mail:umoni@sina.com).

中图分类号: O343.6; O357.1; O242.2
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- 被引次数: 0
出版历程
- 收稿日期: 2011-05-24
- 修回日期: 2011-11-30
- 刊出日期: 2012-02-15

Monolithic Approach to Thermal Fluid Structure Interaction With Non-Conforming Interfaces

¹College of Urban Construction and Safety Engineering, Nanjing University of Technology,Nanjing 210009, P.R.China;²Department of Engineering Mechanics, Kunming University of Science and Technology,Kunming 650051, P.R.China

摘要

摘要: 提出了非一致性界面热流固耦合作用整体求解的一种方法．热流体求解基于Boussinesq假设和不可压缩的Navier-Stokes方程．流体区域的运动采用任意Lagrange-Euler（ALE）方法．拟固体元方法实现流体区域的变形．使用几何非线性的热弹性动力学描述固体运动．为了保证界面处应力和传热的平衡，采用了基于Gauss积分点的数据交换方法，对热流固耦合最终形成的强非线性方程实现整体求解．数值实例分析表明该方法的健壮性和有效性．
- 热流固耦合系统(TFSI) /
- 非一致性界面 /
- 整体求解
Abstract: A monolithic approach to thermal fluid structure interaction with non-conforming interfaces was presented. The thermal viscous flow was governed by the Boussinesq approximation and the incompressible Navier-Stokes equations.The motion of the fluid domain was accounted for by an arbitrary Lagrangian-Eulerian (ALE) strategy. A pseudo-solid formulation was used to manage the deformation of the fluid domain. The structure was described by geometrically nonlinear thermoelastic dynamics. An efficient data transfer strategy based on Gauss points was proposed to guarantee equilibrium of the stresses and heat along the interface. The resulting strongly coupled set of non-linear equations for fluid, structure, heat was solved by a monolithic solution procedure. Numerical example was presented to demonstrate the robustness and efficiency of the methodology.
- thermal fluid structure interaction /
- non-conforming interface /
- monolithic solution

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参考文献(17)

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