Experimental and numerical investigation of coolant mixing in a model of reactor pressure vessel down-comer and in cold leg inlets

• Published in: Thermal science Vol. 21; no. 3; pp. 1491 - 1502
• Main Authors: Hutli, Ezddin, Gottlasz, Valer, Farkas, Istvanne, Ezsol, Gyorgy, Baranyai, Gabor
• Format: Journal Article
• Language: English
• Published: Belgrade Society of Thermal Engineers of Serbia 2017
• Subjects: Computational fluid dynamics; Computer simulation; Flow velocity; Inlets; Particle image velocimetry; Pipes; Planar laser induced fluorescence; Pressure vessels; Temperature distribution; Thermal fatigue; Thermal shock; Turbulent flow; Turbulent mixing

Thermal fatigue and pressurized thermal shock phenomena are the main problems for the reactor pressure vessel and the T-junctions both of them depend on the mixing of the coolant. The mixing process, flow and temperature distribution has been investigated experimentally using particle image velocime...