Local void fraction and pressure drop data for horizontal annular flow through orifice

2026-07-11T20:40:18Z https://rodare.hzdr.de/oai2d

oai:rodare.hzdr.de:362 2021-11-29T14:11:11Z openaire_data user-fwd user-rodare

true 3.1 HZDR.RODARE 10.14278/rodare.362 Porombka, Paul 0000-0002-7494-7948 Boden, Stephan 0000-0002-7170-078X Lucas, Dirk 0000-0003-0463-2278 Hampel, Uwe 0000-0002-7371-0148 Local void fraction and pressure drop data for horizontal annular flow through orifice Rodare 2020 X-ray microtomography film thickness circular orifice annular flow 2020-06-09 https://rodare.hzdr.de/record/362 https://www.hzdr.de/publications/Publ-31135 https://www.hzdr.de/publications/Publ-30820 10.14278/rodare.361 https://rodare.hzdr.de/communities/fwd https://rodare.hzdr.de/communities/rodare Restricted Access This dataset combines multiple measurements form air-water horizontal annular flow experiments in a pipe (case A) and a pipe with circular orifice with \({d^2 / D^2} = 0.6\)  (case B). Measurements where taken at superficial Reynolds numbers of Re=25000 for the gas phase and Re =4090 for the liquid phase. The following data are included for each case: <ul> <li>linear pressure drop between two points (case A), four points (case B) measured with split-range differential pressure transducers at 5Hz</li> <li>time-averaged local liquid volume fraction distribution in cylindrical and Cartesian coordinates reconstructed from X-ray microtomography projections</li> <li>reconstructed pipe axis coordinates and pipe radius</li> <li>Python code to calculate secondary validation parameters (e.g. film thickness distribution) from primary data</li> </ul> The detailed 3D data is intended for validation of computational fluid dynamics codes based on phase-averaged variables such as the Euler-Euler approach.