Publikationsrepositorium - Helmholtz-Zentrum Dresden-Rossendorf

Evaporating two-phase flows were investigated in an 8 m long vertical pipe with an inner diameter of 195.3 mm. The phase transfer was induced by depressurization of the pipe starting from 1, 2, 4 and 6.5 MPa. The pressure relief was done for an upward liquid flow in the test section as well as for stagnant liquid. These experiments complete the extensive CFD-grade database obtained at the same test section for adiabatic two-phase flows and flows with bubble condensation along the pipe. Detailed information on the structure of the steam-water interface was obtained using a pair of wire-mesh sensors. The established database is suitable for the development and validation of CFD.