HORIZON Mach 2 Wind Tunnel

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One of the facilities that the HORIZON group has available for use is the low-enthalpy blowdown wind tunnel. This facility was updated in March 2016 with an in-house designed and manufactured Mach 2 nozzle. The test section has a constant cross-section of 8 in x 8 in with air as the test gas compressed to nominally 20 MPa. The plenum pressure is maintained at approximately 240 kPa. The freestream velocity and Reynolds number are 507 m/s and 3.0 x 107 m-1, respectively. Although previously used for duct flow experiments, the HORIZON team uses the tunnel for diagnostic testing and for shock-boundary layer interaction research.

Shown below are Mach number (left) and numerical Schlieren (right) contours for the Mach 2.01 High-Speed Wind Tunnel used for these experiments. These are streamwise-transverse views.
Schlieren and particle image velocimetry (PIV) diagnostic setups.
Mach number contours for the Mach 2.01 High-Speed Wind Tunnel used for these experiments. These are streamwise-transverse views.
Mach number contours for the Mach 2.01 High-Speed Wind Tunnel used for these experiments. These are streamwise-transverse views.
Numerical Schlieren contours for the Mach 2.01 High-Speed Wind Tunnel used for these experiments. These are streamwise-transverse views.
Numerical Schlieren contours for the Mach 2.01 High-Speed Wind Tunnel used for these experiments. These are streamwise-transverse views.
Close up of the test section.
Close up of the test section.