Simulation of thermal-transient-induced-pipe-flow stratification using COMMIX-2
At low-flow (high Richardson number) in a piping system with thermal transient, thermal-buoyancy-induced secondary flows exist. Three-dimensional computer codes are, therefore, necessary to model correctly the non-axisymmetric, thermally stratified flow through a piping system. This paper presents the results of the numerical simulation of thermal-hydraulic behavior in a pipe during a thermal transient. The particular transient considered was the experimental test No. PIPE2, and carried out at the Mixing Components Test Facility (MCTF). The numerical simulation was performed using COMMIX-2. COMMIX-2 is a computer code for steady/unsteady, three-dimensional, two-phase thermal-hydraulic analysis of reactor components under normal and off-normal operating conditions. The results of simulation are compared with the experimental measurements and they are in reasonable agreement with experimental data.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 6343319
- Report Number(s):
- CONF-820601-27; ON: DE83008746
- Resource Relation:
- Conference: ASME pressure vessel and piping conference, Orlando, FL, USA, 27 Jun 1982; Other Information: Portions are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Simulation of thermal transient induced pipe flow stratification using COMMIX-2
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Related Subjects
42 ENGINEERING
PIPES
FLUID MECHANICS
REACTOR COOLING SYSTEMS
TRANSIENTS
C CODES
MATHEMATICAL MODELS
SIMULATION
TEMPERATURE GRADIENTS
COMPUTER CODES
COOLING SYSTEMS
ENERGY SYSTEMS
MECHANICS
REACTOR COMPONENTS
220100* - Nuclear Reactor Technology- Theory & Calculation
420400 - Engineering- Heat Transfer & Fluid Flow