Numerical simulation on the flow field of COIL mixing nozzle with injection from subsonic region

hu zong-min; sun ying-ying; wu bao-gen; jiang zong-lin

Volume 17 Issue 04

Apr. 2005

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Article Navigation > High Power Laser and Particle Beams > 2005 > 17(04): 0-

chen wei-qing, zeng zheng-zhong, zou li-li, et al. Mass jet distribution in gas spark gaps under microsecond 100kA current pulse[J]. High Power Laser and Particle Beams, 2004, 16.

Citation:

hu zong-min, sun ying-ying, wu bao-gen, et al. Numerical simulation on the flow field of COIL mixing nozzle with injection from subsonic region[J]. High Power Laser and Particle Beams, 2005, 17.

chen wei-qing, zeng zheng-zhong, zou li-li, et al. Mass jet distribution in gas spark gaps under microsecond 100kA current pulse[J]. High Power Laser and Particle Beams, 2004, 16.

Citation:

hu zong-min, sun ying-ying, wu bao-gen, et al. Numerical simulation on the flow field of COIL mixing nozzle with injection from subsonic region[J]. High Power Laser and Particle Beams, 2005, 17.

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Numerical simulation on the flow field of COIL mixing nozzle with injection from subsonic region

1.
Key Laboratory of High Temperature Gas Dynamics,Institute of Mechanics,Chinese Academy of Sciences,Beijing 100080,China

Publish Date: 2005-04-15

Abstract

Abstract

Three-dimensional CFD technology was used to simulate the flow field of COIL mixing nozzle. Concentration-driven as well as pressure-driven diffusion terms were considered in the diffusion equations. The 10 species and 21 reactions chemical model was applied to implement the chemical kinetics. Some elementary fluid dynamic phenomena of a round transverse jet were obtained such as the horse-shoe-shaped jet trajectory and the counter-rotating vortex pairs. The results indicate that the pressure-driven diffusion term has contrary effects on species of different molar weight, the molecular of "heavier" species diffuses toward the pressure gradients and that of "lighter" species against the pressure gradients. It was also found that even complete jet penetration was not achieved, the gain field
- coil flow-field,
- mixing: reaction,
- numerical simulation,
- three-dimensional computational fluid dynamics(cfd),

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