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| PDF方法模拟钝体驻定的湍流扩散火焰 | |
| 引用本文： | 黄庆,朱旻明,叶桃红,刘明侯,陈义良,董刚.PDF方法模拟钝体驻定的湍流扩散火焰[J].计算物理,2008,25(6). |
| 作者姓名： | 黄庆 朱旻明 叶桃红 刘明侯 陈义良 董刚 |
| 作者单位： | 1. 中南大学能源科学与工程学院,湖南,长沙,410083;中国科学技术大学热科学和能源工程系,安徽,合肥,230027 2. 中国科学技术大学热科学和能源工程系,安徽,合肥,230027 3. 南京理工大学动力工程学院,江苏,南京,210094 |
| 摘 要： | 采用标量联合的概率密度函数方法,对钝体驻定的湍流射流扩散Sydney火焰HM1进行数值模拟,结合当地自适应建表方法加速化学反应计算,用修正的LRR-IP雷诺应力模型求解速度场.首次对3种不同规模的甲烷化学反应动力学机理进行研究,并与实验数据进行比较,结果表明,模型和反应机理很好地预测了速度场和标量场的变化及局部熄火现象,而考虑反应机理中的C2化学对火焰HM1的影响不大. |
| 关 键 词： | 概率密度函数方法 当地自适应建表 钝体驻定扩散火焰 局部熄火 |
PDF Simulation of Bluff-body Stabilized Turbulent Non-premixed Flame |
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| HUANG Qing,ZHU Minming,YE Taohong,LIU Minghou,CHEN Yiliang,DONG Gang.PDF Simulation of Bluff-body Stabilized Turbulent Non-premixed Flame[J].Chinese Journal of Computational Physics,2008,25(6). | |
| Authors: | HUANG Qing ZHU Minming YE Taohong LIU Minghou CHEN Yiliang DONG Gang |
| Institution: | HUANG Qing~ |
| Abstract: | A joint-scalar probability density function(PDF) model is used to simulate bluff-body stabilized turbulent non-premixed Sydney flames HM1.In Situ Adaptive Tabulation(ISAT) algorithm is used to accelerate chemistry calculations.A modified LRR-IP Reynolds stress model is applied to obtain mean flow and turbulent mixing fields.We consider three chemical kinetical schemes for methane chemistry.Simulation results are compared with experimental data.It shows that the model and mechanisms predict flow field,scalar field and local extinction well. C2 chemistry has minor effect on flame HM1. |
| Keywords: | probability density function method in Situ adaptive tabulation bluff-body stabilized non-premixed flame local extinction |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |