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Conference Article: Computational investigation of thermohydraulic aspects of two convergent flows at different temperatures mixed in the tee junction area

Scherbakov, S.I. (Institute of Physics and Power Engineering, Obninsk (Russian Federation))

Abstract

Comparison of calculational results, obtained by the participants of the benchmark on a T-junction of LMFR secondary circuit was carried out. Two-dimensional calculational thermohydraulic model of the T-junction was developed, allowing to perform numerous alternative calculations in a short time. Explanation is proposed of appearance near the wall of low-frequency pulsations of velocity and temperature in a mixing streams area. Calculations of transient periodic flow and temperature fields in fluid and a pipe wall for the T-junction was carried out.

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key words: benchmarks; flow models; mathematical models; pipe joints; secondary coolant circuits; temperature distribution; thermal analysis
Reference:
Final report of a co-ordinated research project 1996-1999
International Atomic Energy Agency, Vienna (Austria)
IAEA-TECDOC--1318, pp:186-205