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基于数字化孔隙模型水驱驱油效率研究
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作者 张思琪 《化学工程师》 CAS 2019年第2期21-23,17,共4页
通过自适应孔隙度方法,拟合实测渗透率后构建了数字化孔隙模型。利用渗流力学有关公式、流体力学及水电相似原理与流量守恒定律,考虑了喉道内油水界面的变化建立了饱和油、水驱油数学模型,并编制了相应的计算程序,模拟饱和油、水驱油过... 通过自适应孔隙度方法,拟合实测渗透率后构建了数字化孔隙模型。利用渗流力学有关公式、流体力学及水电相似原理与流量守恒定律,考虑了喉道内油水界面的变化建立了饱和油、水驱油数学模型,并编制了相应的计算程序,模拟饱和油、水驱油过程,对水驱驱油效率的影响进行分析。研究表明在其它因素不变的情况下,孔喉比的降低,配位数的增加,圆形截面数量的增加,水驱驱油效率增加。 展开更多
关键词 数字化孔隙模型 波纹管状 孔隙结构参数 水驱驱油效率
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Behaviors of Bellows-Like Origami Patterned Tubes with Trapezoidal Patterns
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作者 Gotou Humihiko Shibata Katsuya +1 位作者 Kudo Yasuhiro Emura Takuro 《Journal of Civil Engineering and Architecture》 2014年第11期1438-1444,共7页
In this paper, we show one of the possibility utilizing typical origami structures for civil engineering fields such as the bridge bearing support. We numerically investigate axial spring constants and buckling behavi... In this paper, we show one of the possibility utilizing typical origami structures for civil engineering fields such as the bridge bearing support. We numerically investigate axial spring constants and buckling behaviors of bellows-like origami tube structures. The bellows-like origami tube structures, which can be folded because of elastic deformations, work as a kind of spring. If the initial heights of the bellows-like origami tubes are less than 90% of the height of the prismatic tubes without bellows-like folded lines, the spring constants of the bellows-like tubes are very low compared with those of the prismatic tubes. The buckling loads and patterns of the bellows-like tubes vary depending on the initial heights of the tubes. 展开更多
关键词 ORIGAMI foldable cylinder BUCKLING CalculiX.
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