| Radiative properties of alumina/aluminum particles and influence on radiative heat transfer in solid rocket motor |
| |
| 作者姓名： | Xuefan HAO Hu ZHANG Xiao HOU Guihua TANG |
| |
| 作者单位： | State Key Laboratory for Strength and Vibration of Mechanical Structures,Xi'an Jiaotong University,Xi'an 710049,China;Shaanxi Key Laboratory of Environment and Control for Flight Vehicle,Xi'an Jiaotong University,Xi'an 710049,China;College of Astronautics,Northwestern Polytechnical University,Xi'an 710072,China;Key Laboratory of Thermo-Fluid Science and Engineering,Ministry of Education,Xi'an Jiaotong University,Xi'an 710049,China |
| |
| 基金项目： | National Natural Science Foundation of China (No. 51825604)； |
| |
| 摘 要： | The thermal radiation of micron-sized condensed phase particles plays a dominant role during the heat transfer process in aluminized Solid Rocket Motors（SRMs）. Open research mainly focuses on the radiative properties of alumina particles while the study considering the presence of aluminum is lacking. In addition, the thermal radiation inside the SRM with consideration of the participating particles is seldom studied. In this work, the multiscale method of predicting the thermal environment insi...
|
| 收稿时间： | 27 September 2020 |
Radiative properties of alumina/aluminum particles and influence on radiative heat transfer in solid rocket motor |
| |
| Xuefan HAO,Hu ZHANG,Xiao HOU,Guihua TANG.Radiative properties of alumina/aluminum particles and influence on radiative heat transfer in solid rocket motor[J].Chinese Journal of Aeronautics,2022,35(2):98-116. |
| |
| Authors: | Xuefan HAO Hu ZHANG Xiao HOU Guihua TANG |
| |
| Institution: | 1. State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi''an Jiaotong University, Xi''an 710049, China;2. Shaanxi Key Laboratory of Environment and Control for Flight Vehicle, Xi''an Jiaotong University, Xi''an 710049, China;3. College of Astronautics, Northwestern Polytechnical University, Xi''an 710072, China;4. Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi''an Jiaotong University, Xi''an 710049, China |
| |
| Abstract: | The thermal radiation of micron-sized condensed phase particles plays a dominant role during the heat transfer process in aluminized Solid Rocket Motors (SRMs).Open research mainly focuses on the radiative properties of alumina particles while the study considering the presence of aluminum is lacking.In addition,the thermal radiation inside the SRM with consideration of the participating particles is seldom studied.In this work,the multiscale method of predicting the ther-mal environment inside SRMs is established from the particle radiation at microscale to the two-phase flow and heat transfer at macroscale.The effective gray radiative properties of individual par-ticles (alumina,aluminum,and hybrid alumina/aluminum) and particles cloud are investigated with the Mie theory and approximate method.Then a numerical method for predicting the thermal envi-ronment inside SRMs with considering particle radiation is established and applied in a subscale motor.The convective and radiative heat flux distributions along inner wall of motor are obtained,and it is found that the heat transfer in the combustion chamber is dominated by thermal radiation and the radiative heat flux is essentially a constant of 5.6-6.8 MW/m2.The convective heat transfer plays a dominant role in the nozzle and the heat flux reaches the maximum value of 11.2 MW/m2 near the throat.As the combustion efficiency of aluminum drops,the radiative heat flux remains unchanged in most regions and increases slightly along the diverging section wall of the nozzle. |
| |
| Keywords: | Alumina Aluminum Condensed phase particle Radiative heat transfer Radiative properties Solid rocket motor |
| 本文献已被 万方数据 ScienceDirect 等数据库收录！ |
|
