| 无隙锥形旋流器燃烧室流场分叉现象的数值研究 |
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| 引用本文： | 陈利如,焦树建.无隙锥形旋流器燃烧室流场分叉现象的数值研究[J].航空动力学报,1995,10(2):155-158,201. |
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| 作者姓名： | 陈利如 焦树建 |
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| 作者单位： | 清华大学;清华大学 |
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| 基金项目： | 国家自然科学基资金资助 |
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| 摘 要： | 分别对冷态条件下, 无隙锥形旋流器燃烧室前扩压器内流场的分叉现象以及燃烧室内燃烧空间的流场分叉现象进行了数值模拟计算。希望通过流场的数值模拟计算, 从流体力学的角度寻找流场产生分叉现象的原因。流场的数值计算结果与实验测量结果符合较好。
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| 关 键 词： | 流场 分叉现象 数值计算 旋流式燃烧器 |
| 收稿时间： | 5/1/1994 12:00:00 AM |
NUMERICAL STUDY ON BIFURCATION PHENOMENON IN A COMBUSTOR WITH A NON SLOT CONICAL SWIRLER |
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| Chen Liru and Jiao Shujian.NUMERICAL STUDY ON BIFURCATION PHENOMENON IN A COMBUSTOR WITH A NON SLOT CONICAL SWIRLER[J].Journal of Aerospace Power,1995,10(2):155-158,201. |
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| Authors: | Chen Liru and Jiao Shujian |
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| Institution: | Dept.of Thermal Engineering,Tsinghua University,Beijing 100084;Dept.of Thermal Engineering,Tsinghua University,Beijing 100084 |
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| Abstract: | The numerical simulations of bifurcation phenomena in a combustor with a non slot conical swirler and in a diffuser fixed before the non slot conical swirler have been carried out.The results of the simulations show that there are two different kinds of vortex emerged before the conical swirler,that may be one of the feed back factors controlling bifurcation phenomenon,and the characteristics of the turbulent flow in the combustion zone must be changed abruptly as the bifurcation phenomenon occurs.These conclusions may reveal the causation of bifurcation phenomenon in this combustor from the viewpoint of aerodynamics.The calculated results are consistent with the experimental data. |
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| Keywords: | umerical computation Flow field Bifurcation |
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