13

Adjacent to this, two stainless steel screens (6000 porosity) are mounted. Both the honeycomb section and stainless steel screens act as flow straighteners. A removable cover provides access to this area.

    In the return plenum (Figure 2-2), twin-turning vane cascades are placed to direct the flow leaving the test section. A removable plexiglas end wall enables observation from downstream.

Test Section

    The test section sides and flanges are made of 0.5 in. thick, clear acrylic plexiglas. The test section floor is made of 0.75 in. thick, clear, acrylic plexiglas. The test section interior is 48 in. long by 6 in. high by 6 in. wide (Figure 2-3). A portion of this excess height is used as the sidewall boundary for the wind tunnel test section.


Figure 2-1 Inlet plenum and pump.