Stability of capillary cylindrical jets in external flow
Abstract
The stability of cylindrical capillary jets is studied, when the surrounding medium has both axial and tangential velocity components in the undisturbed state; viscosity is neglected in both fluids. It is shown that non axisymmetric disturbances can be unstable. When the external flow is purely axial, the highest growth rate is obtained for axisymmetric disturbances, but for large enough tangential velocities of the surrounding medium the dominant disturbances are proportional to exp(inθ) withn>0.
- Publication:
-
Zeitschrift Angewandte Mathematik und Physik
- Pub Date:
- September 1983
- DOI:
- Bibcode:
- 1983ZaMP...34..575M
- Keywords:
-
- Computational Fluid Dynamics;
- Cylinders;
- Drops (Liquids);
- Jet Flow;
- Asymptotic Methods;
- Flow Velocity;
- Fuel Injection;
- Fluid Mechanics and Heat Transfer;
- Viscosity;
- Growth Rate;
- Velocity Component;
- Mathematical Method;
- High Growth