Domain of validity

domain of validity

All model reduction carried out with the Activity Index analysis is limited to the conditions under which it was tested and the parameters used. Thus the reduced model was validated for a pump speed of 1000 rev/min and for the other set parameters, such as feeding pressure, fluid type, diameters, etc. This model was tested at other pump speeds to check if the domain of validity could be extended.

Pump speed is now 1500 rpm for the models, results are compared in the figure below.

Figure 55: Evolution of the output flow rate

The differences are not significant. The simplification is still acceptable.

Warning

The extension of the domain of validity is never guaranteed and a comparison with the initial model is always necessary. If significantly different results are observed, a new Activity Index analysis must be carried out in order to see if some elements cannot be removed under the new conditions.