Effects of air properties on flow filed characteristics of inflatable reentry decelerator
Air properties are very important for predicting the flow filed characteristics of aircraft. At present, Sutherland formula is always used to predict the flow filed characteristics of inflatable reentry decelerator. However, high temperature can be observed in high speed reentry flow around inflatab...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
EDP Sciences
2022-02-01
|
| Series: | Xibei Gongye Daxue Xuebao |
| Subjects: | |
| Online Access: | https://www.jnwpu.org/articles/jnwpu/full_html/2022/01/jnwpu2022401p158/jnwpu2022401p158.html |
| _version_ | 1797668658254708736 |
|---|---|
| author | HE Qingsong WANG Guangxing WANG Qi ZHANG Zhang WANG Liwu JIA He |
| author_facet | HE Qingsong WANG Guangxing WANG Qi ZHANG Zhang WANG Liwu JIA He |
| author_sort | HE Qingsong |
| collection | DOAJ |
| description | Air properties are very important for predicting the flow filed characteristics of aircraft. At present, Sutherland formula is always used to predict the flow filed characteristics of inflatable reentry decelerator. However, high temperature can be observed in high speed reentry flow around inflatable reentry decelerator, thus the Sutherland formula is not suitable for reentry flow simulation of inflatable reentry decelerator. In order to investigate the effect of the air properties on the flow filed characteristics of inflatable reentry decelerator, and provides the theoretical references for the inflatable reentry decelerator design, the Gupta fitting formula and Sutherland formula are used to describe the air properties, respectively, for studying the flow filed characteristics of inflatable reentry decelerator. The results show that the reentry flow temperature with Gupta fitting formula used is lower than that with Sutherland formula used, and the temperature difference is more obvious in the high inflow Mach number and temperature cases. The results in the windward of inflatable reentry decelerator show that the Sutherland formula underestimates the heat flux and pressure, and the heat flux difference is much more obvious. Such as case 5, the peak heat flux obtained by Gupta fitting formula is by 29% higher than that obtained by Sutherland formula. |
| first_indexed | 2024-03-11T20:32:35Z |
| format | Article |
| id | doaj.art-bd34a002b5ee436abaf54a86aee4b85d |
| institution | Directory Open Access Journal |
| issn | 1000-2758 2609-7125 |
| language | zho |
| last_indexed | 2024-03-11T20:32:35Z |
| publishDate | 2022-02-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Xibei Gongye Daxue Xuebao |
| spelling | doaj.art-bd34a002b5ee436abaf54a86aee4b85d2023-10-02T07:41:18ZzhoEDP SciencesXibei Gongye Daxue Xuebao1000-27582609-71252022-02-0140115816610.1051/jnwpu/20224010158jnwpu2022401p158Effects of air properties on flow filed characteristics of inflatable reentry deceleratorHE Qingsong0WANG Guangxing1WANG Qi2ZHANG Zhang3WANG Liwu4JIA He5Beijing Institute of Space Mechanics & ElectricityBeijing Institute of Space Mechanics & ElectricityBeijing Institute of Space Mechanics & ElectricityBeijing Institute of Space Mechanics & ElectricityBeijing Institute of Space Mechanics & ElectricityBeijing Institute of Space Mechanics & ElectricityAir properties are very important for predicting the flow filed characteristics of aircraft. At present, Sutherland formula is always used to predict the flow filed characteristics of inflatable reentry decelerator. However, high temperature can be observed in high speed reentry flow around inflatable reentry decelerator, thus the Sutherland formula is not suitable for reentry flow simulation of inflatable reentry decelerator. In order to investigate the effect of the air properties on the flow filed characteristics of inflatable reentry decelerator, and provides the theoretical references for the inflatable reentry decelerator design, the Gupta fitting formula and Sutherland formula are used to describe the air properties, respectively, for studying the flow filed characteristics of inflatable reentry decelerator. The results show that the reentry flow temperature with Gupta fitting formula used is lower than that with Sutherland formula used, and the temperature difference is more obvious in the high inflow Mach number and temperature cases. The results in the windward of inflatable reentry decelerator show that the Sutherland formula underestimates the heat flux and pressure, and the heat flux difference is much more obvious. Such as case 5, the peak heat flux obtained by Gupta fitting formula is by 29% higher than that obtained by Sutherland formula.https://www.jnwpu.org/articles/jnwpu/full_html/2022/01/jnwpu2022401p158/jnwpu2022401p158.htmlair transport propertiesgupta fitting formulasutherland formulainflatable reentry deceleratorsimulation |
| spellingShingle | HE Qingsong WANG Guangxing WANG Qi ZHANG Zhang WANG Liwu JIA He Effects of air properties on flow filed characteristics of inflatable reentry decelerator Xibei Gongye Daxue Xuebao air transport properties gupta fitting formula sutherland formula inflatable reentry decelerator simulation |
| title | Effects of air properties on flow filed characteristics of inflatable reentry decelerator |
| title_full | Effects of air properties on flow filed characteristics of inflatable reentry decelerator |
| title_fullStr | Effects of air properties on flow filed characteristics of inflatable reentry decelerator |
| title_full_unstemmed | Effects of air properties on flow filed characteristics of inflatable reentry decelerator |
| title_short | Effects of air properties on flow filed characteristics of inflatable reentry decelerator |
| title_sort | effects of air properties on flow filed characteristics of inflatable reentry decelerator |
| topic | air transport properties gupta fitting formula sutherland formula inflatable reentry decelerator simulation |
| url | https://www.jnwpu.org/articles/jnwpu/full_html/2022/01/jnwpu2022401p158/jnwpu2022401p158.html |
| work_keys_str_mv | AT heqingsong effectsofairpropertiesonflowfiledcharacteristicsofinflatablereentrydecelerator AT wangguangxing effectsofairpropertiesonflowfiledcharacteristicsofinflatablereentrydecelerator AT wangqi effectsofairpropertiesonflowfiledcharacteristicsofinflatablereentrydecelerator AT zhangzhang effectsofairpropertiesonflowfiledcharacteristicsofinflatablereentrydecelerator AT wangliwu effectsofairpropertiesonflowfiledcharacteristicsofinflatablereentrydecelerator AT jiahe effectsofairpropertiesonflowfiledcharacteristicsofinflatablereentrydecelerator |