Research on the Prediction Model and Formation Law of Drying Cracks of Paddy Based on Multi-Physical Field Coupling
Cracking in paddy during processing and storage can significantly degrade its quality and economic value. This study elucidates the crack formation law in paddy across various drying stages through experiments and simulations that integrate multiple physical fields. A predictive model for crack occu...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-02-01
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| Series: | Agriculture |
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| Online Access: | https://www.mdpi.com/2077-0472/15/4/383 |
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| author | Hongchao Wang Ziyu Wang Gang Che Lin Wan Zhengfa Chen |
| author_facet | Hongchao Wang Ziyu Wang Gang Che Lin Wan Zhengfa Chen |
| author_sort | Hongchao Wang |
| collection | DOAJ |
| description | Cracking in paddy during processing and storage can significantly degrade its quality and economic value. This study elucidates the crack formation law in paddy across various drying stages through experiments and simulations that integrate multiple physical fields. A predictive model for crack occurrence, based on the relationship between the probability of cracking and drying time, is developed by introducing a critical moisture evaporation coefficient to delineate safe regio for cracking. The findings indicate a sharp increase in the percentage of drying cracks during the initial rapid drying phase, with continued escalation through the slower drying phase. The predictive model’s coefficient of determination exceeded 0.85, demonstrating its efficacy in forecasting crack progression. The primary driver for crack initiation and growth was identified as the cumulative effect of the moisture gradient, with the yield stress proving inadequate to counteract the stresses induced by this gradient, leading to cracking in paddy grains. These results furnish valuable insights for accurately predicting and managing crack development in paddy. |
| format | Article |
| id | doaj-art-f4e7f84b215e44e9beb3cf99ffd01f47 |
| institution | DOAJ |
| issn | 2077-0472 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agriculture |
| spelling | doaj-art-f4e7f84b215e44e9beb3cf99ffd01f472025-08-20T03:11:07ZengMDPI AGAgriculture2077-04722025-02-0115438310.3390/agriculture15040383Research on the Prediction Model and Formation Law of Drying Cracks of Paddy Based on Multi-Physical Field CouplingHongchao Wang0Ziyu Wang1Gang Che2Lin Wan3Zhengfa Chen4College of Engineering, Heilongjiang Bayi Agricultural University, Daqing 163319, ChinaCollege of Information and Electrical Engineering, Heilongjiang Bayi Agricultural University, Daqing 163319, ChinaCollege of Engineering, Heilongjiang Bayi Agricultural University, Daqing 163319, ChinaCollege of Engineering, Heilongjiang Bayi Agricultural University, Daqing 163319, ChinaCollege of Engineering, Heilongjiang Bayi Agricultural University, Daqing 163319, ChinaCracking in paddy during processing and storage can significantly degrade its quality and economic value. This study elucidates the crack formation law in paddy across various drying stages through experiments and simulations that integrate multiple physical fields. A predictive model for crack occurrence, based on the relationship between the probability of cracking and drying time, is developed by introducing a critical moisture evaporation coefficient to delineate safe regio for cracking. The findings indicate a sharp increase in the percentage of drying cracks during the initial rapid drying phase, with continued escalation through the slower drying phase. The predictive model’s coefficient of determination exceeded 0.85, demonstrating its efficacy in forecasting crack progression. The primary driver for crack initiation and growth was identified as the cumulative effect of the moisture gradient, with the yield stress proving inadequate to counteract the stresses induced by this gradient, leading to cracking in paddy grains. These results furnish valuable insights for accurately predicting and managing crack development in paddy.https://www.mdpi.com/2077-0472/15/4/383paddycrackmultiple physical fieldsdryingpredictive modelcritical moisture evaporation coefficient |
| spellingShingle | Hongchao Wang Ziyu Wang Gang Che Lin Wan Zhengfa Chen Research on the Prediction Model and Formation Law of Drying Cracks of Paddy Based on Multi-Physical Field Coupling Agriculture paddy crack multiple physical fields drying predictive model critical moisture evaporation coefficient |
| title | Research on the Prediction Model and Formation Law of Drying Cracks of Paddy Based on Multi-Physical Field Coupling |
| title_full | Research on the Prediction Model and Formation Law of Drying Cracks of Paddy Based on Multi-Physical Field Coupling |
| title_fullStr | Research on the Prediction Model and Formation Law of Drying Cracks of Paddy Based on Multi-Physical Field Coupling |
| title_full_unstemmed | Research on the Prediction Model and Formation Law of Drying Cracks of Paddy Based on Multi-Physical Field Coupling |
| title_short | Research on the Prediction Model and Formation Law of Drying Cracks of Paddy Based on Multi-Physical Field Coupling |
| title_sort | research on the prediction model and formation law of drying cracks of paddy based on multi physical field coupling |
| topic | paddy crack multiple physical fields drying predictive model critical moisture evaporation coefficient |
| url | https://www.mdpi.com/2077-0472/15/4/383 |
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