Process characteristic of the foam centrifuge and its scale-up

Consideration of the foam breaking process using dimensional analysis leads to the following relevance list for the problem  

This is indeed true, but it has to be taken into consideration that the state of the foam upon entry into the foam centrifuge very much depends upon the force field in which it has been produced. 

The above-mentioned relevance list provides the following pi-space  

The number represents the inverse of the well known gas throughput number Q, Fr is the Froude number incorporating the gas throughput and ct is the dimensionless fraction of the foaming agent in the liquid (e.g. in ppm). S represents a (still unknown) dimensionless combination of physical properties, which describe the tendency of the foam to break up. 

Model experiments were carried out on three geometrically similar devices in the model-scale ti= I 1.5 2. Fig. 4.27 shows expression (4.90) for the surfactant Mersolat H in two concentrations. The process relationship is as follows 

---