settling chamber-settle and straighten the air through the use of panels with honeycomb-shaped holes or a mesh screen.
contraction cone-a constricted space that greatly increases airflow velocity.
diffuser-conical shape that widens, and thus, smoothly slows the air's velocity without causing turbulence in the test section.
test section-where sensors record data and scientists make visual observations.
closed circuits-vals that send the air around and around the same path using vanes and honeycomb panels to precisely guide and direct the flow.