Numerical investigation of nozzle shape effects on CO/sub 2/ gas dynamic laser performance
Conference
·
· AIAA J.; (United States)
OSTI ID:6032088
The effect of three types of nozzle shapes of CC-nozzle, S-nozzle and SFML-nozzle for the CO/sub 2/ gasdynamic laser (CO/sub 2/ GDL) component on GDL performance are investigated by two-dimensional simulation of the vibrational nonequilibrium inviscid flow field including the existence of shock wave. A point implicit scheme is used to solve these stiff equations. It is shown that the SFML-nozzle is superior to other nozzles from the point of view of GDL characteristics such as the small signal gain and the maximum power available. Design criteria for efficient GDL nozzles are also discussed. 18 references.
- Research Organization:
- Tokyo Univ., Japan
- OSTI ID:
- 6032088
- Report Number(s):
- AIAA-Paper-87-1452; CONF-870622-
- Conference Information:
- Journal Name: AIAA J.; (United States)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
AMPLIFICATION
CARBON DIOXIDE LASERS
FLUID MECHANICS
GAIN
GAS DYNAMIC LASERS
GAS LASERS
ITERATIVE METHODS
LASERS
MECHANICS
NOZZLES
NUMERICAL SOLUTION
PERFORMANCE
RUNGE-KUTTA METHOD
SHOCK WAVES
SIMULATION
SPECIFICATIONS
TWO-DIMENSIONAL CALCULATIONS
420300* -- Engineering-- Lasers-- (-1989)
AMPLIFICATION
CARBON DIOXIDE LASERS
FLUID MECHANICS
GAIN
GAS DYNAMIC LASERS
GAS LASERS
ITERATIVE METHODS
LASERS
MECHANICS
NOZZLES
NUMERICAL SOLUTION
PERFORMANCE
RUNGE-KUTTA METHOD
SHOCK WAVES
SIMULATION
SPECIFICATIONS
TWO-DIMENSIONAL CALCULATIONS