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Numerical Study on Similarity of Plume’s Infrared Radiation from Reduced Scaling Solid Rocket
Joint Authors
Source
Journal of Applied Mathematics
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-10-05
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Similarity of plume radiation between reduced scaling solid rocket models and full scale ones in ground conditions has been taken for investigation.
Flow and radiation of plume from solid rockets with scaling ratio from 0.1 to 1 have been computed.
The radiative transfer equation (RTE) is solved by the finite volume method (FVM) in infrared band 2~6 μm.
The spectral characteristics of plume gases have been calculated with the weighted-sum-of-gray-gas (WSGG) model, and those of the Al2O3 particles have been solved by the Mie scattering model.
Our research shows that, with the decreasing scaling ratio of the rocket engine, the radiation intensity of the plume decreases with 1.5~2.5 power of the scaling ratio.
The infrared radiation of the plume gases shows a strong spectral dependency, while that of the Al2O3 particles shows grey property.
Spectral radiation intensity of the high temperature core of the solid rocket plume increases greatly in the peak absorption spectrum of plume gases.
Al2O3 particle is the major radiation composition in the rocket plume, whose scattering coefficient is much larger than its absorption coefficient.
There is good similarity between spectral variations of plumes from different scaling solid rockets.
The directional plume radiation rises with the increasing azimuth angle.
American Psychological Association (APA)
Zhang, Xiaoying& Li, Rui. 2015. Numerical Study on Similarity of Plume’s Infrared Radiation from Reduced Scaling Solid Rocket. Journal of Applied Mathematics،Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1067107
Modern Language Association (MLA)
Zhang, Xiaoying& Li, Rui. Numerical Study on Similarity of Plume’s Infrared Radiation from Reduced Scaling Solid Rocket. Journal of Applied Mathematics No. 2015 (2015), pp.1-11.
https://search.emarefa.net/detail/BIM-1067107
American Medical Association (AMA)
Zhang, Xiaoying& Li, Rui. Numerical Study on Similarity of Plume’s Infrared Radiation from Reduced Scaling Solid Rocket. Journal of Applied Mathematics. 2015. Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1067107
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1067107