抄録
Wall interference of Jet-blast is investigated. Jet-blast form airplane is simulated by using a sonic nozzle at a laboratory scale. In this study, far-field velocity distributions are measured by using X-type hot wire anemometer at four measurement planes. Understanding the velocity distributions in faraway downstream is very important when we concern the problems of jet-blast. We also intend to utilize these data develop new turbulence model on CFD. As a result, HWHM, aspect ratio and spreading rate of wall-jet are consistent with published data [1-6]. Distributions of Reynolds stress are analyzed from the data obtained. Interesting property of w distribution is found, that is, peak of w moves outwards on lateral direction as X/D increased. On the other hand, w'w' distribute around the center of the wall-jet.
