Air/water flow experiments in the hot leg model of the TOPFLOW facility


Air/water flow experiments in the hot leg model of the TOPFLOW facility

Vallee, C.; Deendarlianto; Lucas, D.; Beyer, M.; Pietruske, H.

The presentation gives an overview about the air/water experiments performed in the hot leg model built in the pressure vessel of the TOPFLOW facility.
These experiments were conducted in a flat test-section representing a model of the hot leg of a pressurised water reactor. The region of the elbow and of the steam generator inlet chamber are equipped with glass side walls in order to allow high-speed video observations of the two-phase flow in this region. Three types of experiments were performed: co-current flow experiments, steady counter-current flow experiments and counter-current flow limitation (CCFL) experiments. The test procedures, detailed test matrices and selected examples of the measured data are presented. Furthermore, an analysis of the CCFL experiments is shown, including a comparison with similar experiments and empirical correlations available in the literature.
In the next future, the acquired data will be treated to allow the validation of CFD codes.

Keywords: hot leg; pressurised water reactor; PWR; two-phase flow; counter-current flow; counter-current flow limitation; CCFL

  • Lecture (others)
    10th Meeting of the German CFD Network, 17.-18.09.2007, Garching, Germany

Permalink: https://www.hzdr.de/publications/Publ-10465
Publ.-Id: 10465