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�������պ����ѧѧ�� 2009, Vol. 35 Issue (9) :1121-1124    DOI:
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���������������SNBCKģ�͵� ����������Լ���
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Calculation of aircraft exhaust system infrared characteristics based on SNBCK model and finite volume method
Hu Haiyang, Wang Qiang*
School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract�� The coupled calculations for flow fluid field, species concentration field and gas radiation transfer /energy equations based on SNBCK model were employed to simulate accurately the aerothermodynamic and infrared characteristics of the aircraft exhaust system. The parameters of narrow-band model were evaluated by HITEMP line-by-line database. Two calculating cases, the computation of carbon dioxide absorptivity at 4.3 micron band and the radiation heat transfer evaluation of the cylindrical furnace, respectively proved the accuracy of using this method to calculate radiation transfer/energy equations. Finally, the infrared characteristics of two two-dimensional nozzles were calculated, and the results show the great differences of infrared characteristic for high width-height ratio 2-dimentional nozzle between ground and high altitude state.
Keywords�� exhaust systems   infrared radiation   statistical narrow-band model   correlated-k model     
Received 2008-09-01;
About author: ������(1981-),��,����������,��ʿ��,barbapapa@sjp.buaa.edu.cn.
������, �� ǿ.���������������SNBCKģ�͵� ����������Լ���[J]  �������պ����ѧѧ��, 2009,V35(9): 1121-1124
Hu Haiyang, Wang Qiang.Calculation of aircraft exhaust system infrared characteristics based on SNBCK model and finite volume method[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2009,V35(9): 1121-1124
http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2009/V35/I9/1121
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