The HyperBLaF is a Mach 8 blowdown wind tunnel used for fundamental studies of compressible turbulence ... so that the pipe stores the heat and contains the high pressure gas. The vacuum system uses ...

The work will take place from 7-10 a.m. It will involve a blowdown of the gas line. "The blowdown will generate a continuous loud roaring sound from in and around the facility and may be heard ...