The instability of the liquid jets in a jet singlet oxygen generator for oxygen-iodine lasers may limit the operational conditions and the scalability of such generators. Therefore the type of instability and the breakup behavior of jets is investigated experimentally for varying operational conditions. Jets of basic hydrogen peroxide are simulated by the use of glycerin solutions with different viscosities. Two experimental setups with optical observation of the jet development are described. Transition from laminar to turbulent jets, the associated breakup modes and the beginning of jet dissolution by surface spraying are observed. For generator relevant jet diameters intact jet lengths were found to be limited to approx. 25 cm. Jets with driving pressure of more than 3 bar exhibited strong spraying from their surface. The jet diameter shrinks with increasing driving pressure.
Fourth International Workshop on Iodine Lasers and Applications
- Pub Date:
- February 1996