Computer Techniques and Applications Figure 11. Comparison between physical measurements and 3-D calculations. The lines shows the measured velocities and the arrows the computed. The results are shown for mean depth. CONCLUSIONS The agreement between physical modelling and 3-D mathematical modelling is good. Eddies are found in the same places and the main flow profile agrees well. Areas with almost zero velocities and the eddies show fairly good agreement but the eddy distribution differs in some places. 3-D calculations give the possibility of studying swirls not only in the surface plane but also in other planes, such as a swirl with its axis parallel to the main flow direction close the intake.

DOI link for Computer Techniques and Applications Figure 11. Comparison between physical measurements and 3-D calculations. The lines shows the measured velocities and the arrows the computed. The results are shown for mean depth. CONCLUSIONS The agreement between physical modelling and 3-D mathematical modelling is good. Eddies are found in the same places and the main flow profile agrees well. Areas with almost zero velocities and the eddies show fairly good agreement but the eddy distribution differs in some places. 3-D calculations give the possibility of studying swirls not only in the surface plane but also in other planes, such as a swirl with its axis parallel to the main flow direction close the intake.

Computer Techniques and Applications Figure 11. Comparison between physical measurements and 3-D calculations. The lines shows the measured velocities and the arrows the computed. The results are shown for mean depth. CONCLUSIONS The agreement between physical modelling and 3-D mathematical modelling is good. Eddies are found in the same places and the main flow profile agrees well. Areas with almost zero velocities and the eddies show fairly good agreement but the eddy distribution differs in some places. 3-D calculations give the possibility of studying swirls not only in the surface plane but also in other planes, such as a swirl with its axis parallel to the main flow direction close the intake.