Sindayihebura, D
Bolle, Léon
[UCL]
One of the fundamental steps in the process of liquid fan ultrasonic atomization is the hydrodynamic instability. The resulting surface,waves become unstable and tear. This causes a mist of uniform droplets to be formed and ejected. The study of ideal liquid film free surface behavior in the steps prior to droplet formation leads to a stability analysis based on the Mathieu-Hill equation. Unfortunately, a similar analysis cannot realistically be developed for a viscous liquid. The present work performs a linear analysis derived from the hydrodynamics, which allows a stability analysis of viscous bounded liquid film free surface. Actual results are compared to those obtained in the case of an inviscid fluid.
Bibliographic reference |
Sindayihebura, D ; Bolle, Léon. Ultrasonic atomization of liquids: Stability analysis of the viscous liquid film free surface. In: Atomization and Sprays, Vol. 8, no. 2, p. 217-233 (1998) |
Permanent URL |
http://hdl.handle.net/2078.1/45164 |