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The influence of cavity's diamond pattern on the performance of gas dynamic lasers

Published online by Cambridge University Press:  08 September 2016

A.M. Tahsini
A.M. Tahsini*
Affiliation:
Aerospace Research Institute, Tehran, Iran
*
a_m_tahsini@yahoo.com
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Abstract

The gas dynamic laser is numerically studied using quasi-1D and 2D simulations to investigate the effect of diamond pattern of the supersonic flow field (inhomogeneities in density field) on the laser's performance. The system of governing equations is solved with a finite volume approach using a structured grid in which the AUSM+ scheme is used to calculate the convective fluxes. Vibrational temperature of different modes, population inversion and the small signal gain are studied, and the effect of the divergent nozzle's geometry at the maximum gain is analysed.

Keywords

Diamond patterngaingas dynamiclasernonequilibriumnumerical simulationoptical cavitysupersonicvibrational energy
Type
Research Article
Information
The Aeronautical Journal , Volume 120 , Issue 1234 , December 2016 , pp. 1932 - 1942
Copyright
Copyright © Royal Aeronautical Society 2016 

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References

REFERENCES

1. Endo, M. and Walter, R.F. Gas Lasers, 1st ed., 2007, CRC Press, Taylor & Francis Group, Florida, US.Google Scholar
2. Hurle, I.R. and Hertzberg, A. Electronic population inversions by fluid-mechanical techniques, Physics of Fluids, 1965, 8, (9), pp 1958-1988.Google Scholar
3. Gerry, E.T. Gasdynamic lasers, IEEE Spectrum, 1970, 7, (11), pp 51-58.CrossRefGoogle Scholar
4. Anderson, J.D. A time-dependent analysis for vibrational and chemical nonequilibrium nozzle flows, AIAA J., 1970, 8, (3), pp 545-550.Google Scholar
5. Anderson, J.D. Time-dependent analysis of population inversions in an expanding gas, Physics of Fluids, 1970, 13, (8), pp 1983-1989.Google Scholar
6. Anderson, J.D., Humphrey, R.L., Vamos, J.S., Plummer, M.J. and Jensen, R.E. Population inversions in an expanding gas: Theory and experiments, Physics of Fluids, 1971, 14, (12), pp 2620-2624.CrossRefGoogle Scholar
7. Christiansen, W.H. and Tsongas, G.A. Gain kinetics of CO2 gasdynamic laser mixtures at high pressure, Physics of Fluids, 1971, 14, (12), pp 2610-2619.Google Scholar
8. Biriukov, A.S., Dronov, A.P., Koudriavtsev, E.M. and Sobolev, N.N. Gas dynamic CO2-He-(N2) laser investigations, IEEE J. Quantum Electronics, 1971, 7, (8), pp 388-391.Google Scholar
9. McLeary, R. Calculation of gain and power output for a gas-dynamic laser, IEEE J. Quantum Electronics, 1972, 8, (8), pp 716-718.CrossRefGoogle Scholar
10. Reddy, K.P.J. Time-dependent analysis of an N2O gasdynamic laser, AIAA J., 1989, 27, (10), pp 1387-1391.Google Scholar
11. Reddy, N.M. and Reddy, K.P.J. Theoretical gain optimization studies in 16-micron CO2-N2-H2 gasdynamic lasers, AIAA J., 1985, 23, (6), pp 883-888.CrossRefGoogle Scholar
12. Anderson, J.D. Gasdynamic Lasers: An Introduction, 1st ed., 1976, Academic Press, New York, US.Google Scholar
13. Hu, Z., Jiang, Z., Myong, R. and Cho, T. Numerical analysis of spatial evolution of the small signal gain in a chemical oxygen-iodine laser operating without primary buffer gas, Optics & Laser Technology, 2008, 40, pp 13-20.Google Scholar
14. Park, J.S., Baek, S.W. and Byun, D. Variation of population inversion and gain characteristics with D2 injection angle in DF chemical laser cavity, Int. J. Heat and Mass Transfer, 2008, 51, pp 361-377.CrossRefGoogle Scholar
15. Park, J.S. and Baek, S.W. Numerical study of base effects on population inversion in DF chemical laser cavity, Int. J. Heat and Mass Transfer, 2006, 49, pp 4043-4057.Google Scholar
16. Chakravarty, P., Reddy, N.M. and Reddy, K.P.J. Two-dimensional analysis of a 16-micron CO2 downstream-mixing gasdynamic laser, AIAA J, 1987, 25, (5), pp 713-720.Google Scholar
17. Kuo, K.K. Principles of Combustion, 2nd ed., 2005, Wiley and Sons, Hoboken, New Jersey, US.Google Scholar
18. Hirsch, C. Numerical Computation of Internal and External Flows, 1988, Wiley and Sons, Hoboken, New Jersey, US.Google Scholar
19. Liou, M.S. A sequel to AUSM: AUSM+ , J. Computational Physics, 1996, 129, pp 364-382.CrossRefGoogle Scholar
20. Tahsini, A.M. Heat release effects on drag reduction in high speed flows, Int. J. Heat and Mass Transfer, 2013, 57, (2), pp 657-661.Google Scholar
21. Tahsini, A.M. and Tadayon Mousavi, S. Investigating the supersonic combustion efficiency for the jet-in-cross-flow, Int. J. Hydrogen Energy, 2015, 40, (7), pp 3091-3097.Google Scholar
22. Tahsini, A.M. Turbulence and additive effects on ignition delay in supersonic combustion, IMechE J. Aerospace Engineering, 2013, 227, (1), pp 93-99.CrossRefGoogle Scholar
23. Tahsini, A.M. Non-steady burning effect on solid rocket motor performance, 45th AIAA Aerospace Sciences Meeting and Exhibit, Aerospace Sciences Meetings, 2007, Reno, Nevada, US.Google Scholar