Numerical study on propulsion performance of laser thruster with elongate cylindrical nozzle

cheng fuqiang; dou zhiguo; li qian

Volume 23 Issue 09

Sep. 2012

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cheng fuqiang, dou zhiguo, li qian. Numerical study on propulsion performance of laser thruster with elongate cylindrical nozzle[J]. High Power Laser and Particle Beams, 2011, 23.

Citation:

cheng fuqiang, dou zhiguo, li qian. Numerical study on propulsion performance of laser thruster with elongate cylindrical nozzle[J]. High Power Laser and Particle Beams, 2011, 23.

cheng fuqiang, dou zhiguo, li qian. Numerical study on propulsion performance of laser thruster with elongate cylindrical nozzle[J]. High Power Laser and Particle Beams, 2011, 23.

Citation:

cheng fuqiang, dou zhiguo, li qian. Numerical study on propulsion performance of laser thruster with elongate cylindrical nozzle[J]. High Power Laser and Particle Beams, 2011, 23.

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Numerical study on propulsion performance of laser thruster with elongate cylindrical nozzle

1.
Company of Postgraduate Management,Academy of Equipment,Beijing 101416,China;
2.
Department of Basic Theory,Academy of Equipment,Beijing 101416,China

Publish Date: 2011-09-15

Abstract

Abstract

Laser thrusters with single nozzle of parabolic or conic profile fail to constrict the high-pressured flow efficiently, resulting in poor propulsion performance. Under air-breathing mode and different single-pulse laser energy, the laser thruster with elongate cylindrical nozzle which features a parabolic nozzle tailed by a cylindrical nozzle is studied numerically for different shape parameters by building physical computation model. Readily, its impulse coupling coefficient is tested to be more than 600 N/MW with a good accordance with the foreign experiments. Meanwhile, the results show that, the impulse coupling coefficient increases along with cylindrical nozzle length and approaches a constant value, and the proposed cylindrical nozzle saturation length increases linearly with laser
- laser propulsion,
- air-breathing mode,
- single-pulse,
- parabolic-cylindrical combined nozzle,
- impulse coupling coefficient

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