Numerical Study about Behavior of an Ejecting Projectile for Varying Initial Conditions

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In the present study, analyses of initial behavior of an air-launched projectile for varying initial conditions are performed by coupling computational fluid dynamics and 6 degrees of freedom calculations. Accuracy of the present numerical methods is validated by comparing the present result with the measured data. Launching safety analyses are carried out for various ejecting conditions by considering weight of the projectile and magnitude of front and rear ejector forces as the major parameters of initial behavior of the projectile. A response surface of the projectile launching safety is obtained in the range of the major parameters. In all the conditions of zero rear ejector force, unsafe launching behavior is observed. As the weight of the projectile decreases, the initial launching behavior becomes more unsafe.
Publisher
KOREAN SOC AERONAUTICAL & SPACE SCIENCES
Issue Date
2019-01
Language
Korean
Article Type
Article
Citation

JOURNAL OF THE KOREAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, v.47, no.11, pp.761 - 767

ISSN
1225-1348
DOI
10.5139/JKSAS.2019.47.11.761
URI
http://hdl.handle.net/10203/271147
Appears in Collection
AE-Journal Papers(저널논문)
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