DISTORTIONAL SIMULATION IN THE STUDY OF FLOW THROUGH CIRCULAR CONDUITS

In the paper we propose to use the FLUENT program to make a comparison between the results of application normal similitude and distortional similitude in the experiments regarding flow through circular conduits. First, we established the model law, taking into account the physical magnitudes which influence the analyzed phenomena. Afterwards we calculated the scales of these physical magnitudes for normal similitude (one geometrical scale) and distortional similitude (two geometrical scales). Using FLUENT we determined the values of the velocity in the conduit axis, putting the pressure parameters and the dimensions of the conduit according to the two cases of similitude. Finally, we compared the “experimental” results with theoretical results, calculated by application of scale of physical magnitudes.