| 三倍体毛白杨渗透率在径向的分布 |
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| 引用本文： | 郭睿,吴从华,张春生.三倍体毛白杨渗透率在径向的分布[J].应用化工,2007,36(3):221-223. |
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| 作者姓名： | 郭睿 吴从华 张春生 |
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| 作者单位： | 陕西科技大学,化学与化工学院,陕西,咸阳,712081 |
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| 摘 要： | 依据木材并联毛细管模型的假设和Darcy渗透定律,通过气流法对普通气干处理的三倍体毛白杨的心材和边材流体渗透性进行了测定与分析。结果表明,三倍体毛白杨的边材总体平均渗透性比心材渗透性高,心材为140.802 cm/s,边材为221.829 cm/s,后者为前者的1.58倍。制作了三倍体毛白杨在径向的渗透率分布图,分布图显示,渗透率在径向的分布中呈很好的递增趋势。渗透率差异性是由于木材中导管中存在侵填体所造成的,只是所选试样树龄偏小,造成差异性不大。
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| 关 键 词： | 三倍体毛白杨 气流法 渗透率 径向分布 |
| 文章编号： | 1671-3206(2007)03-0221-03 |
| 修稿时间： | 2006-12-26 |
Radial distribution of triploid of populus tomentosa carr.percolation rate |
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| GUO Rui,WU Cong-hua,ZHANG Chun-sheng.Radial distribution of triploid of populus tomentosa carr.percolation rate[J].Applied chemical industry,2007,36(3):221-223. |
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| Authors: | GUO Rui WU Cong-hua ZHANG Chun-sheng |
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| Affiliation: | College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xianyang 712081, China |
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| Abstract: | According to the hypothesis of parallel connection of wood capillary and Darcys law,this essay determined the permeability of sapwood and heartwood of triploid of populus tomentosa carr.by air drying and analysed these phenomenon.The result shows that the perimeability of sapwood of it is higher than its heartwood,the sapwood is 221.829 cm/s,and the heartwood is 140.802 cm/s,the latter permeability is 1.58 times of the former;this essay drew the distribution map of the permeability,this map revealed that the permeability rises along the radial.The tylosis in the vessel caused the difference distribution of the permeability,however,the specimen is too young,the difference is not too much. |
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| Keywords: | triploid of populus tomentosa carr air flow method permeability radial distribution |
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