Modeling and simulation of infrared radiation from rocket plume at boosting stage

2009 ◽  
Author(s):  
Qing Ye ◽  
Xiaoquan SUN ◽  
Yujun Zhang ◽  
Chuangxin Zhang ◽  
Li Shao ◽  
...  
Keyword(s):  
Modeling And Simulation ◽  
Infrared Radiation ◽  
Rocket Plume

Modeling and Simulation of the Dynamical Infrared Radiation of Ballistic Missile in Boost Phase

2014 ◽  
Vol 568-570 ◽  
pp. 933-937
Author(s):  
Guo Zhen Ding ◽  
Zhan Yue Zhang ◽  
Lei Wang ◽  
Zhe Zhang
Keyword(s):  
Modeling And Simulation ◽  
Early Warning ◽  
Infrared Radiation ◽  
Ballistic Missile ◽  
Impact Point ◽  
Two Stage ◽  
Radiation Model ◽  
Simulation Based

With development of the Missile technology, there are more and more challenges for the technology of early-warning satellite detection. The early-warning satellite can compute the data of launch point and impact point of a missile by detecting the changing infrared radiation of the missile. Therefore, the research on the infrared radiation of ballistic missile in boost phase is important for developing the detecting technology of early-warning satellite. In this paper, the dynamical infrared radiation model has been constructed based on the characteristics of trajectory and infrared radiation of a ballistic missile in boost phase, and the model has been verified by simulation based on the data of a two stage ballistic missile.

Numerical Simulation of Infrared Signature Emitted by Liquid Rocket Plume Using Wide Band K-Distribution Model

2012 ◽  
Vol 516-517 ◽  
pp. 41-53
Author(s):  
Xue Mei Yin ◽  
Lin Hua Liu ◽  
Bing Xi Li
Keyword(s):  
Absorption Coefficient ◽  
Nozzle Exit ◽  
Infrared Radiation ◽  
Intensity Variation ◽  
Wide Band ◽  
Distribution Model ◽  
Computational Time ◽  
Band Model ◽  
Rocket Plume ◽  
Liquid Rocket

A new wide band k-distribution model has been developed and used to investigate infrared radiation signatures of liquid rocket plume in some detectors’ working spectrum regions, in which the temperature and the gas molar concentration fields are solved using engineering empirical formulations. Based on the line parameters in HITEMP database, absorption coefficient variables of water vapor and carbon dioxide corresponding to 12-point Gauss-Lobatto quadrature points are derived and expressed as a simple formulation. The absorption coefficient variables of mixture are obtained by summing the absorption coefficient variables of individual gas species under the hypothesis that the k-distributions are statistically uncorrelated. Its validity for the numerical prediction of liquid rocket plume radiation is verified by comparison with line-by-line approach (LBL). Compared with line-by-line calculations, the maximum relative errors of the new band model are less than 10 % in the detectors’ working spectrum regions, while the computational time of the new band model is less than 1/1000 of LBL. The effects of fly parameter on infrared radiation signatures of liquid rocket plume are studied using the new model. The results showed that the integral radiation intensities of liquid rocket plume increase with the nozzle exit temperature, Mach number and the ratio of nozzle exit pressure to atmospheric pressure. The radiation intensity variation trend for liquid rocket plume with altitude is different for different detectors’ working spectrum regions.

Modeling and simulation for infrared radiation of global background

2021 ◽  
Author(s):  
Yaochen Liu ◽  
Yuanyuan Ji ◽  
Lili Dong ◽  
Wenhai Xu
Keyword(s):  
Modeling And Simulation ◽  
Infrared Radiation ◽  
Global Background

scholarly journals Numerical Study on Similarity of Plume’s Infrared Radiation from Reduced Scaling Solid Rocket

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Xiaoying Zhang ◽  
Rui Li
Keyword(s):  
Radiation Intensity ◽  
Infrared Radiation ◽  
Numerical Study ◽  
Spectral Characteristics ◽  
Mie Scattering ◽  
Infrared Band ◽  
Spectral Radiation ◽  
Solid Rockets ◽  
Rocket Plume ◽  
Solid Rocket

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 Al2O3particles 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 Al2O3particles 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. Al2O3particle 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.

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