Laser beam deviation as a local density probe

✍ Scribed by J. C. Mombo-Caristan; L. C. Philippe; M. Y. Perrin; J. P. Martin

• Book ID: 104660163
• Publisher: Springer
• Year: 1989
• Tongue: English
• Weight: 448 KB
• Volume: 7
• Category: Article
• ISSN: 0723-4864
• DOI: 10.1007/bf00198448

✦ Synopsis

In axisymmetric flows, we show that the laser beam deviation technique can be associated with an Abel inversion calculation in order to give the local density and its gradients. We report density profile measurements in the different regions (zone of silence and barrel shock) of nitrogen and argon supersonic free jets near the nozzle exit. Three different nozzle geometries have been tested at different stagnation pressures. Results are compared to calculations obtained by the method of characteristics.