Analysis of Concentric Canister Wall Roughness Effect on Jet Flow Based on Fluid Dynamics

Yun Shan Bai; Yi Jiang; Dong Mo Zhou

doi:10.4028/www.scientific.net/AMM.252.3

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Analysis of Concentric Canister Wall Roughness Effect on Jet Flow Based on Fluid Dynamics
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 252Analysis of Concentric Canister Wall Roughness...

Analysis of Concentric Canister Wall Roughness Effect on Jet Flow Based on Fluid Dynamics

Abstract:

Adopting concentric canister launchers (CCL), high temperature and high pressure environment of CCL is unfavorable for the missile launch. In addition to the gap between internal canister and external canister, injecting water for cooling are the main factor of impact the canister flow field, CCL’s rough wall is also a very important influence factor. In this paper, under the two working conditions of rough wall and smooth wall, use dynamic layering manner of moving mesh update method to simulate concentric canister missile launch process. The results reveal that rough wall has a great influence for pressure of concentric canister internal flow field, but the least influence for temperature. In practical engineering applications, need smooth surface material for smooth flow field exhaust when manufacturing concentric cylinder, but the non-concentric canister manufacturing of missile cold-launch canister, retain the rough wall can increase the pressure of the missile launch, this is conducive to missile launch, and also saves manufacturing costs, reduces processing procedures.

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Periodical:

Applied Mechanics and Materials (Volume 252)

Pages:

3-8

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.252.3

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Online since:

December 2012

Authors:

Yun Shan Bai, Yi Jiang, Dong Mo Zhou

Keywords:

Concentric Canister, Dynamic Laying Methods, Jet Flow, Roughness, Zone Moving Methods

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References

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