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�������պ����ѧѧ�� 2010, Vol. 36 Issue (1) :82-86    DOI:
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Gas dynamic resonance performance of coaxial injector
Yu Nanjia, Cai Guobiao, Zhang Guozhou*
School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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ժҪ Ϊ���о��������������г���������,���ø߾��ȸ߷ֱ��ʵ�NND��ʽ�������ά��Գ���ŵƽ��Navier-Stokes����,�Ի�������-г���ϵͳ����г����ȹ�����г��������������̽�������ֵ����,���Բ�ͬ����Ļ�������-г���ϵͳ��������ֵģ��.�о��������:����������Բ����������Ƶ�г����ȹ��ɺ���������,�����û�������ͬ������г����ڲ���ǿ�ҵĸ�Ƶ������.���Ż������������С,ÿһ��г�������е�г�������𽥼�С.�����ܹ�����ǿ��г��ļ��С��Բ����-г���ϵͳ�ļ��,��С���ʱ�����ںܿ���������ѹ����Χ�ڲ���ǿ�ҵ�г��,��Ϊ����г�������ĽṹС�ͻ��͹���ʵ�����ṩ����������.
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Abstract�� In order to study gas dynamic resonance performance of coaxial injector, high precision and high resolution NND scheme was used to solve Reynolds averaged Navier-Stokes equations. Numerical simulation was used to study process of oscillatory flow in different coaxial injector-resonance tube system. Flow field structure and character were obtained. It is obvious that coaxial injector and circle injector have similar resonance heating rules and flow field character. And resonance heating temperature decrease in every resonance cycle when the areas of coaxial injector reduce. The coaxial injector-s distance range between injector and resonance tube where intense resonance will occur is shorter than that of circle injector, and inlet pressure range of coaxial injector is wider than that of circle injector.
Keywords�� gas dynamic   resonance   simulation   ignition     
Received 2008-12-28;
About author: ���ϼ�(1974-),��,�㽭����,��ʦ,ynj@buaa.edu.cn.
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���ϼ�, �̹��, �Ź���.������������г���������[J]  �������պ����ѧѧ��, 2010,V36(1): 82-86
Yu Nanjia, Cai Guobiao, Zhang Guozhou.Gas dynamic resonance performance of coaxial injector[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2010,V36(1): 82-86
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