Numerical solution of two-dimensional ablation problems using the finite control volume method with unstructured grids
This paper presents the solution of two-dimensional axisymmetric ablation problems with unstructured grids. The energy equation is formulated and solved using the Finite Control Volume Method. The exterior shape of the ablating body is determined from a surface energy balance with the interior mesh displaced in response to the surface ablation as if the body was a linear elastic solid. Boundary condition matrices are formulated for both heat of ablation and generalized thermochemical ablation boundary conditions. Computed recession rates are compared to an analytical solution to demonstrate the accuracy and convergence of this approach. Additionally, the practical application of this approach to the ablation of a reentry vehicle nose tip is presented.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 10166271
- Report Number(s):
- SAND-94-1644C; AIAA-94-2085; CONF-940625-8; ON: DE94015012; BR: GB0103012; TRN: AHC29417%%8
- Resource Relation:
- Conference: 6. AIAA/ASME thermophysics and heat transfer conference, Colorado Springs, CO (United States), 20-23 Jun 1994; Other Information: PBD: [1994]
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
REENTRY VEHICLES
ABLATION
GRAPHITE
NUMERICAL SOLUTION
COMPARATIVE EVALUATIONS
USES
HEAT TRANSFER
MESH GENERATION
ALGORITHMS
ACCURACY
THEORETICAL DATA
TWO-DIMENSIONAL CALCULATIONS
360604
990200
CORROSION, EROSION, AND DEGRADATION
MATHEMATICS AND COMPUTERS