Random distribution of porosity in the combustion space area of underground coal fire
Through statistical analysis of random experiments, there is a function of porosity 3lnφ-2ln(1-φ) that approximately follows a normal distribution. In the test particle size range of 30 to 180 ram, the expectation and variance of this function value increase with an increase in grain size of rock bl...
| Published in: | 工程科学学报 |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | Chinese |
| Published: |
Science Press
2015-05-01
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| Subjects: | |
| Online Access: | http://cje.ustb.edu.cn/article/doi/10.13374/j.issn2095-9389.2015.05.001 |