The Simulation of Different Combustion Stages of Micron-sized Aluminum Particles
In this study, a quasi-steady combustion model of an aluminum particle is established, which is more accurate to simulate the physical combustion process. Detailed gas-phase reaction mechanism and surface reaction mechanism are considered. Moreover, the particle temperature is not constant in this w...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-02-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/11/4/1774 |
| _version_ | 1797396306861228032 |
|---|---|
| author | Zejun Hu Tao Yang Zhixun Xia Likun Ma Mingtai Li Yunchao Feng |
| author_facet | Zejun Hu Tao Yang Zhixun Xia Likun Ma Mingtai Li Yunchao Feng |
| author_sort | Zejun Hu |
| collection | DOAJ |
| description | In this study, a quasi-steady combustion model of an aluminum particle is established, which is more accurate to simulate the physical combustion process. Detailed gas-phase reaction mechanism and surface reaction mechanism are considered. Moreover, the particle temperature is not constant in this work, which is calculated in different combustion stages. The judgement standard of each combustion stage is from observational data in the experiment and the simulation results of combustion durations of each stage, and distribution of ambient temperature and gas-phase species profiles are in good agreement with experimental results. The calculation results show that in the first stage, burning rate of the particle is the fastest, and in the second stage, particle temperature can drop to more than 100 K below the boiling point for the large particles, which is slightly below the boiling point for small ones. As the combustion stage changes, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>D</mi><mi>a</mi></mrow></semantics></math></inline-formula> number is going to keep going down, which will lead to the transition of combustion method from diffusion-limited control to kinetic-limited control for an aluminum particle. |
| first_indexed | 2024-03-09T00:48:26Z |
| format | Article |
| id | doaj.art-419212ee2af74f80bd080b63c5a5c882 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T00:48:26Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-419212ee2af74f80bd080b63c5a5c8822023-12-11T17:20:42ZengMDPI AGApplied Sciences2076-34172021-02-01114177410.3390/app11041774The Simulation of Different Combustion Stages of Micron-sized Aluminum ParticlesZejun Hu0Tao Yang1Zhixun Xia2Likun Ma3Mingtai Li4Yunchao Feng5College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaCollege of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaCollege of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaCollege of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaCollege of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaCollege of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaIn this study, a quasi-steady combustion model of an aluminum particle is established, which is more accurate to simulate the physical combustion process. Detailed gas-phase reaction mechanism and surface reaction mechanism are considered. Moreover, the particle temperature is not constant in this work, which is calculated in different combustion stages. The judgement standard of each combustion stage is from observational data in the experiment and the simulation results of combustion durations of each stage, and distribution of ambient temperature and gas-phase species profiles are in good agreement with experimental results. The calculation results show that in the first stage, burning rate of the particle is the fastest, and in the second stage, particle temperature can drop to more than 100 K below the boiling point for the large particles, which is slightly below the boiling point for small ones. As the combustion stage changes, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>D</mi><mi>a</mi></mrow></semantics></math></inline-formula> number is going to keep going down, which will lead to the transition of combustion method from diffusion-limited control to kinetic-limited control for an aluminum particle.https://www.mdpi.com/2076-3417/11/4/1774aluminum particlecombustion stagescombustion mechanism |
| spellingShingle | Zejun Hu Tao Yang Zhixun Xia Likun Ma Mingtai Li Yunchao Feng The Simulation of Different Combustion Stages of Micron-sized Aluminum Particles Applied Sciences aluminum particle combustion stages combustion mechanism |
| title | The Simulation of Different Combustion Stages of Micron-sized Aluminum Particles |
| title_full | The Simulation of Different Combustion Stages of Micron-sized Aluminum Particles |
| title_fullStr | The Simulation of Different Combustion Stages of Micron-sized Aluminum Particles |
| title_full_unstemmed | The Simulation of Different Combustion Stages of Micron-sized Aluminum Particles |
| title_short | The Simulation of Different Combustion Stages of Micron-sized Aluminum Particles |
| title_sort | simulation of different combustion stages of micron sized aluminum particles |
| topic | aluminum particle combustion stages combustion mechanism |
| url | https://www.mdpi.com/2076-3417/11/4/1774 |
| work_keys_str_mv | AT zejunhu thesimulationofdifferentcombustionstagesofmicronsizedaluminumparticles AT taoyang thesimulationofdifferentcombustionstagesofmicronsizedaluminumparticles AT zhixunxia thesimulationofdifferentcombustionstagesofmicronsizedaluminumparticles AT likunma thesimulationofdifferentcombustionstagesofmicronsizedaluminumparticles AT mingtaili thesimulationofdifferentcombustionstagesofmicronsizedaluminumparticles AT yunchaofeng thesimulationofdifferentcombustionstagesofmicronsizedaluminumparticles AT zejunhu simulationofdifferentcombustionstagesofmicronsizedaluminumparticles AT taoyang simulationofdifferentcombustionstagesofmicronsizedaluminumparticles AT zhixunxia simulationofdifferentcombustionstagesofmicronsizedaluminumparticles AT likunma simulationofdifferentcombustionstagesofmicronsizedaluminumparticles AT mingtaili simulationofdifferentcombustionstagesofmicronsizedaluminumparticles AT yunchaofeng simulationofdifferentcombustionstagesofmicronsizedaluminumparticles |