TOPAZ2D validation status report, August 1990
Analytic solutions to two heat transfer problems were used to partially evaluate the performance TOPAZ, and LLNL finite element heat transfer code. The two benchmark analytic solutions were for: 2D steady state slab, with constant properties, constant uniform temperature boundary conditions on three sides, and constant temperature distribution according to a sine function on the fourth side; 1D transient non-linear, with temperature dependent conductivity and specific heat (varying such that the thermal diffusivity remained constant), constant heat flux on the front face and adiabatic conditions on the other face. The TOPAZ solution converged to the analytic solution in both the transient and the steady state problem. Consistent mass matrix type of analysis yielded best performance for the transient problem, in the late-time response; but notable unnatural anomalies were observed in the early-time temperature response at nodal locations near the front face. 5 refs., 22 figs.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5540579
- Report Number(s):
- UCRL-ID-106561; ON: DE91013983
- Country of Publication:
- United States
- Language:
- English
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42 ENGINEERING
HEAT TRANSFER
T CODES
COMPUTERIZED SIMULATION
FINITE ELEMENT METHOD
MATRICES
NONLINEAR PROBLEMS
NUMERICAL SOLUTION
ONE-DIMENSIONAL CALCULATIONS
PROGRESS REPORT
STEADY-STATE CONDITIONS
THERMAL CONDUCTIVITY
TWO-DIMENSIONAL CALCULATIONS
COMPUTER CODES
DOCUMENT TYPES
ENERGY TRANSFER
PHYSICAL PROPERTIES
SIMULATION
THERMODYNAMIC PROPERTIES
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