Experimental evaluation of a subsonic Ludwieg tube

  title={Experimental evaluation of a subsonic Ludwieg tube},
  author={Philip C. Malte and Kenneth R. Sivier},
A SUBSONIC Ludwieg tube, or simple expansion tube, •£*can supplement a shock tube as an aerodynamic testing facility. For example, the convective flow behind the centered expansion wave propagating in the tube can be used to accelerate small solid particles and thereby measure drag forces pertinent to two-phase flow systems. In the subsonic mode, the Ludwieg tube has five times the useful flow duration of an equivalent length shock tube. Furthermore, a Ludwieg tube may complement a shock tube… CONTINUE READING