Improved modeling and numerics to solve two-dimensional elliptic fluid flow and heat transfer problems
A basic, limited scope, fast-running computer model is presented for the solution of two-dimensional, transient, thermally-coupled fluid flow problems. This model is to be the module in the SSC (an LMFBR thermal-hydraulic systems code) for predicting complex flow behavior, as occurs in the upper plenum of the loop-type design or in the sodium pool of the pool-type design. The nonlinear Navier-Stokes equations and the two-equation (two-variable) transport model of turbulence are reduced to a set of linear algebraic equations in an implicit finite difference scheme, based on the control volume approach. These equations are solved iteratively in a line-by-line procedure using the tri-diagonal matrix algorithm. The results of calculational examples are shown in the computer-generated plots. 21 refs., 21 figs.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 5579622
- Report Number(s):
- NUREG/CR-3705; BNL-NUREG-51751; ON: TI86011790
- Country of Publication:
- United States
- Language:
- English
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MATRICES
NATURAL CONVECTION
BREEDER REACTORS
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