| 二元保形非对称膨胀喷管流场特性 |
| |
| 引用本文： | 谢文忠,郭荣伟.二元保形非对称膨胀喷管流场特性[J].航空动力学报,2011,26(1):141-147. |
| |
| 作者姓名： | 谢文忠 郭荣伟 |
| |
| 作者单位： | 南京航空航天大学,能源与动力学院,南京210016 |
| |
| 摘 要： | 利用数值模拟方法对一种与无人飞行器后体一体化设计的二元保形大宽高比非对称膨胀喷管在地面状态的流场特性进行了研究,获得了尾喷管推力性能和三维流动特征随落压比的变化趋势.结果表明:虽然二元保形非对称膨胀喷管沿横向存在非等强度膨胀,但在研究范围内最佳落压比仍主要取决于上方短膨胀面结束位置面积与喉道面积之比;沿横向不等强度膨胀...
|
| 关 键 词： | 非对称膨胀喷管 二元保形喷管 流场特性 二次流 数值模拟 |
| 收稿时间： | 7/1/2010 12:00:00 AM |
| 修稿时间： | 2010/10/10 0:00:00 |
Flow field characteristics of a two-dimensional integrated asymmetry-expansion nozzle |
| |
| XIE Wen-zhong and GUO Rong-wei.Flow field characteristics of a two-dimensional integrated asymmetry-expansion nozzle[J].Journal of Aerospace Power,2011,26(1):141-147. |
| |
| Authors: | XIE Wen-zhong and GUO Rong-wei |
| |
| Institution: | XIE Wen-zhong,GUO Rong-wei(College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China) |
| |
| Abstract: | The flow field characteristics of a two-dimensional uninhabited combat air vehicle(UCAV) aft-body integrated asymmetry-expansion nozzle in ground condition were simulated using a numerical approach which has been validated by NASA(National Aeronautics and Space Administration) experimental data.This study was conducted at NPR(nozzle pressure ratios) from 2.0 to 5.5.Results indicate:(1) In spite of nonuniform expansion at different transverse slices of the UAV(unmanned aerial vehicle) aft-body integrated noz... |
| |
| Keywords: | asymmetry-expansion nozzle two-dimensional integrated nozzle flow field characteristics secondary flow numerical simulation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《航空动力学报》浏览原始摘要信息 |
| 点击此处可从《航空动力学报》下载免费的PDF全文 |
