Within AURIGA, a database of bubble column experiments has been compiled. It is the common basis for the assessment of existing correlations and for the development of new models for the flow regime transitions.
The database collects 209 gas holdup curves from 35 sources, for a total of about 6400 measured points. Each experiment carries the column geometry, the sparger, the properties of the gas and of the liquid and the operating conditions, together with the flow regime transitions identified along the holdup curve. The database also includes 559 local radial profiles, for example of gas holdup, bubble size and bubble velocity.
The experiments cover column diameters from 0.095 to 1 m, liquid viscosities from 0.3 to 15 mPa s and surface tensions from 20 to 82 mN/m. The spargers include perforated and porous plates, orifices, membranes and needles.