Numerical Simulation of Magnesium Dust Dispersion and Explosion in 20 L Apparatus via an Euler–Lagrange Method
Computational fluid dynamics (CFD) was used to investigate the explosion characteristics of a Mg/air mixture in a 20 L apparatus via an Euler–Lagrange method. Various fluid properties, namely pressure field, velocity field, turbulence intensity, and the degree of particle dispersion, were obtained a...
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| Format: | Article |
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MDPI AG
2022-01-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/2/402 |
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| author | Tao Fu Yun-Ting Tsai Qiang Zhou |
| author_facet | Tao Fu Yun-Ting Tsai Qiang Zhou |
| author_sort | Tao Fu |
| collection | DOAJ |
| description | Computational fluid dynamics (CFD) was used to investigate the explosion characteristics of a Mg/air mixture in a 20 L apparatus via an Euler–Lagrange method. Various fluid properties, namely pressure field, velocity field, turbulence intensity, and the degree of particle dispersion, were obtained and analyzed. The simulation results suggested that the best delayed ignition time was 60 ms after dust dispersion, which was consistent with the optimum delayed ignition time adopted by experimental apparatus. These results indicate that the simulated Mg particles were evenly diffused in the 20 L apparatus under the effect of the turbulence. The simulations also reveal that the pressure development in the explosion system can be divided into the pressure rising stage, the maximum pressure stage, and pressure attenuation stage. The relative error of the maximum explosion pressure between the simulation and the experiments is approximately 1.04%. The explosion model provides reliable and useful information for investigating Mg explosions. |
| first_indexed | 2024-03-10T01:35:00Z |
| format | Article |
| id | doaj.art-e57849cf402b4f5aa465bbd484c74a99 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T01:35:00Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-e57849cf402b4f5aa465bbd484c74a992023-11-23T13:35:33ZengMDPI AGEnergies1996-10732022-01-0115240210.3390/en15020402Numerical Simulation of Magnesium Dust Dispersion and Explosion in 20 L Apparatus via an Euler–Lagrange MethodTao Fu0Yun-Ting Tsai1Qiang Zhou2School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, ChinaSchool of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, ChinaSchool of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, ChinaComputational fluid dynamics (CFD) was used to investigate the explosion characteristics of a Mg/air mixture in a 20 L apparatus via an Euler–Lagrange method. Various fluid properties, namely pressure field, velocity field, turbulence intensity, and the degree of particle dispersion, were obtained and analyzed. The simulation results suggested that the best delayed ignition time was 60 ms after dust dispersion, which was consistent with the optimum delayed ignition time adopted by experimental apparatus. These results indicate that the simulated Mg particles were evenly diffused in the 20 L apparatus under the effect of the turbulence. The simulations also reveal that the pressure development in the explosion system can be divided into the pressure rising stage, the maximum pressure stage, and pressure attenuation stage. The relative error of the maximum explosion pressure between the simulation and the experiments is approximately 1.04%. The explosion model provides reliable and useful information for investigating Mg explosions.https://www.mdpi.com/1996-1073/15/2/402computational fluid dynamicsexplosion characteristicsfluid propertiesturbulence intensity |
| spellingShingle | Tao Fu Yun-Ting Tsai Qiang Zhou Numerical Simulation of Magnesium Dust Dispersion and Explosion in 20 L Apparatus via an Euler–Lagrange Method Energies computational fluid dynamics explosion characteristics fluid properties turbulence intensity |
| title | Numerical Simulation of Magnesium Dust Dispersion and Explosion in 20 L Apparatus via an Euler–Lagrange Method |
| title_full | Numerical Simulation of Magnesium Dust Dispersion and Explosion in 20 L Apparatus via an Euler–Lagrange Method |
| title_fullStr | Numerical Simulation of Magnesium Dust Dispersion and Explosion in 20 L Apparatus via an Euler–Lagrange Method |
| title_full_unstemmed | Numerical Simulation of Magnesium Dust Dispersion and Explosion in 20 L Apparatus via an Euler–Lagrange Method |
| title_short | Numerical Simulation of Magnesium Dust Dispersion and Explosion in 20 L Apparatus via an Euler–Lagrange Method |
| title_sort | numerical simulation of magnesium dust dispersion and explosion in 20 l apparatus via an euler lagrange method |
| topic | computational fluid dynamics explosion characteristics fluid properties turbulence intensity |
| url | https://www.mdpi.com/1996-1073/15/2/402 |
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