Study on the mesh size determination method of blast wave numerical simulation with strong applicability
With the rapid development of computer hardware and software technology, numerical simulations have become one of the most important tools for studying propagation law of blast wave. Results of numerical simulations of explosion events greatly depend on the mesh size. The mesh size determination met...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-02-01
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| Series: | Heliyon |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844023009210 |
| _version_ | 1828000743819313152 |
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| author | Zhingping Kuang Zhonghui Liu |
| author_facet | Zhingping Kuang Zhonghui Liu |
| author_sort | Zhingping Kuang |
| collection | DOAJ |
| description | With the rapid development of computer hardware and software technology, numerical simulations have become one of the most important tools for studying propagation law of blast wave. Results of numerical simulations of explosion events greatly depend on the mesh size. The mesh size determination methods in the literature are relatively weak in generality. In this paper, a mesh size determination method with strong applicability is proposed. According to this method, the mesh size is the product of the scale coefficient and the third root of the equivalent TNT mass. The scale coefficient is related to the model dimension, scaled distance and simulation accuracy, and is independent of the TNT shape and the location of the detonation point. A large number of numerical simulation results confirm the accuracy of this method. The recommended scale coefficient to meet the engineering accuracy requirements is related to the model dimension and scaled distance. In general, when the scaled distance and model dimension are larger, the recommended scale coefficient will be larger. In this paper, the figures and tables of the recommended scale coefficients of 1D, 2D and 3D models varying with the scaled distance are given, and their rationality is verified by the existing numerical simulation events of blast wave. They can be used as a reference to determine the mesh size in numerical simulation of blast wave. |
| first_indexed | 2024-04-10T06:19:59Z |
| format | Article |
| id | doaj.art-dc12d64ff0e84cb7a1293127032f3d03 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-10T06:19:59Z |
| publishDate | 2023-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-dc12d64ff0e84cb7a1293127032f3d032023-03-02T05:02:35ZengElsevierHeliyon2405-84402023-02-0192e13714Study on the mesh size determination method of blast wave numerical simulation with strong applicabilityZhingping Kuang0Zhonghui Liu1Department of Structural Engineering, College of Civil Engineering, Tongji University, Shanghai, 200092, ChinaDepartment of Structural Engineering, College of Civil Engineering, Tongji University, Shanghai, 200092, China; Zhejiang Industry Polytechnic College, Shaoxing, Zhejiang, 312000, China; Corresponding author. Department of Structural Engineering, College of Civil Engineering, Tongji University, Shanghai, 200092, China.With the rapid development of computer hardware and software technology, numerical simulations have become one of the most important tools for studying propagation law of blast wave. Results of numerical simulations of explosion events greatly depend on the mesh size. The mesh size determination methods in the literature are relatively weak in generality. In this paper, a mesh size determination method with strong applicability is proposed. According to this method, the mesh size is the product of the scale coefficient and the third root of the equivalent TNT mass. The scale coefficient is related to the model dimension, scaled distance and simulation accuracy, and is independent of the TNT shape and the location of the detonation point. A large number of numerical simulation results confirm the accuracy of this method. The recommended scale coefficient to meet the engineering accuracy requirements is related to the model dimension and scaled distance. In general, when the scaled distance and model dimension are larger, the recommended scale coefficient will be larger. In this paper, the figures and tables of the recommended scale coefficients of 1D, 2D and 3D models varying with the scaled distance are given, and their rationality is verified by the existing numerical simulation events of blast wave. They can be used as a reference to determine the mesh size in numerical simulation of blast wave.http://www.sciencedirect.com/science/article/pii/S2405844023009210Blast waveNumerical simulationMesh sizeTNT mass |
| spellingShingle | Zhingping Kuang Zhonghui Liu Study on the mesh size determination method of blast wave numerical simulation with strong applicability Heliyon Blast wave Numerical simulation Mesh size TNT mass |
| title | Study on the mesh size determination method of blast wave numerical simulation with strong applicability |
| title_full | Study on the mesh size determination method of blast wave numerical simulation with strong applicability |
| title_fullStr | Study on the mesh size determination method of blast wave numerical simulation with strong applicability |
| title_full_unstemmed | Study on the mesh size determination method of blast wave numerical simulation with strong applicability |
| title_short | Study on the mesh size determination method of blast wave numerical simulation with strong applicability |
| title_sort | study on the mesh size determination method of blast wave numerical simulation with strong applicability |
| topic | Blast wave Numerical simulation Mesh size TNT mass |
| url | http://www.sciencedirect.com/science/article/pii/S2405844023009210 |
| work_keys_str_mv | AT zhingpingkuang studyonthemeshsizedeterminationmethodofblastwavenumericalsimulationwithstrongapplicability AT zhonghuiliu studyonthemeshsizedeterminationmethodofblastwavenumericalsimulationwithstrongapplicability |