We resurrected an old Hele-Shaw laboratory model that was used to investigate some of the equations we applied this semester. With Dr. Skaggs' help, we ran an experiment during class to test the equations. For the most part, resulting data showed a strong agreement between the equations and the lab observations, which were recorded by the graduate students pictured here. We did find some areas where the data began to stray from the predicted values, which was also a valuable exercise.
For the study originally published (Skaggs, 1973) from this model, measurements were observed manually using optical sights. Today, it would be a great way to apply vision-based liquid level measurement!