학술논문

Ablation problems using a finite control volume technique
Document Type
Conference
Author
Source
Conference: Moving boundaries `93: computational modeling of free and moving boundary problems,Milan (Italy),23-25 Jun 1993; Other Information: PBD: [1993]
Subject
42 ENGINEERING
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE ABLATION
NUMERICAL SOLUTION
AXIAL SYMMETRY
MESH GENERATION
ALGORITHMS
CONSERVATION LAWS 420200
FACILITIES, EQUIPMENT, AND TECHNIQUES
MATHEMATICS AND COMPUTERS
Language
English
Abstract
An element based finite control volume procedure is applied to the solution of ablation problems for 2-D axisymmetric geometries. A mesh consisting of four node quadrilateral elements was used. The nodes are allowed to move in response to the surface recession rate. The computational domain is divided into a region with a structured mesh with moving nodes and a region with an unstructured mesh with stationary nodes. The mesh is costrained to move along spines associated with the original mesh. Example problems are presented for the ablation of a realistic nose tip geometry exposed to aerodynamic heating from a uniform free stream environment.