A Boundary Element Method for Transient Nonlinear Radiative-Conductive Coupled Heat Transfer Problems
- Paper number
IAC-15,C2,IP,50,x28817
- Author
Dr. Wang Jing, CASC, China
- Coauthor
Mrs. Yanxin Yin, China Academy of Launch Vehicle Technology(CALT), China
- Coauthor
Dr. Chong Ren, China
- Coauthor
Dr. Xiaojing Xu, China
- Coauthor
Dr. Qiang Qu, China
- Coauthor
Mr. Wenhu Hong, China
- Year
2015
- Abstract
A boundary-only formulation for transient radiative-conductive coupled heat transfer problems with nonlinear material properties of the thermal protection systems is presented. Heat radiation and conduction are coupled together by radiative heat source. Firstly, The Green’s function for the Laplace equation is adopted in deriving basic conductive heat transfer integral equations. Secondly, domain integrals appearing in conduction boundary integral equation, radiative heat transfer equation and radiative heat source equation are transformed into boundary integrals using the radial integration method (RIM). Then, boundary integral equations are assembled together to from a set of nonlinear algebraic equations with quadruplicate of temperature. Finally, Newton-Raphson iteration method is applied to solve the nonlinear algebraic equations.
- Abstract document
- Manuscript document
IAC-15,C2,IP,50,x28817.pdf (🔒 authorized access only).
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