Author(s)

B.F. Blackwell, A.L. Thornton & R.E. Hogan

Abstract

Ablation problems using a finite control volume technique B.F. Blackwell, A.L. Thornton, R.E. Hogan National Laboratories, Albuquerque, NM 87185, CASL4 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 re- sponse 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 unstruc- tured mesh with stationary nodes. The mesh is constrained to move along spines associated with the original mesh. Example problems are presented for the abla- tion of a realistic nose tip geometry exposed to aerodynamic heating from a uni- form free stream environment. INTRODUCTION Early attempts at solving ablation problems utilized 1-D finite difference tech- niques on a grid that allowed the surface node to move while keeping the inter

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