Parachute Research Group
Presented at the 14th AIAA Aerodynamic Decelerator Systems Conference
Cell inflation is a process which is similar to that of car airbags, except that the air flow into the cell is unsteady and sometimes random.
A model of a parachute cell is currently being deployed in a series of wind tunnel experiments in which wind speed, cell design and environmental conditions are systematically changed. Here pressure measurements inside the cell are used for an accurate determination of its inflation time.
This study is taking place at the Parks College wind tunnel laboratory.
The experimental setup consists of a one cell parachute model which is deployed via pilot chute extraction from its packing tube. The deployment sequence is initiated by a ripcord pull. The trends so far observed show that inflation time decreases with increasing airflow and inlet surface area.