Abstract
The reaction zone structure of asupersonic flow chemical oxygen-iodine laser(COIL)is simulated solving the two-dimensional Navier-Stokes squations in order to clarify the reaction zone structure and the effects of water vapor condensation precisely. A chemical kinetic model consisting of 10 chemical species and 21 chemical reactions is used to determine the chemical composition of the mixture. The liquid phase is modeled as a number of droplet classes. Each class contains only droplets of a certain range of sizes, which is approximated as one average size. The calculation shows that the I2 gas injected into the singlet oxygen through a two-dimensional slit mixes very slowly and the small signal gain coefficient is high only in a narrow layer where the mole fraction of I(2P1 / 2)reaches a high value. Nonequilibrium condensation takes place during supersonic expansion, generating water droplets whose size much smaller than the wave length of COIL. Condensation reduces the small signal gain coefficient, since the temperature rise caused by latent heat suppresses the generation of I(2P1 / 2).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
