Biot-willis 系数
Web在此公式中,Biot-Willis 系数假设为空间常数。 复值密度和波数定义如下 其中, 是迂曲度(SI 单位:1)或结构形式因子(高频极限), 是孔隙率(SI 单位:1), 是与流阻率相 … WebMar 31, 2016 · View Full Report Card. Fawn Creek Township is located in Kansas with a population of 1,618. Fawn Creek Township is in Montgomery County. Living in Fawn …
Biot-willis 系数
Did you know?
Web本申请提供一种脑环境参数确定装置、方法及电子设备,脑环境参数确定方法包括:获取脑边界条件 ... WebA general treatment of Biot’s theory in the range of nonlinear material behaviour and large deformations can be found in Coussy [1991, 2004], where the theory is reformulated using a thermody-namics approach. Fluid infiltrated porous media consist of solid skeleton and fluid material that occupies the porous space.
Web同时基于常规三轴压缩试验得到的力学参数,引入Biot系数这一参数来研究高温水冷处理后花岗岩内部孔隙在外荷载作用下的变形特征,分析探讨了应力诱发及高温水冷对花岗岩Biot系数的影响。. 主要结论如下: (1)根据高温水冷处理后花岗岩物理力学性质的演化规律 ... WebFeb 10, 2024 · A proper correlation of the Biot‐Willis coefficient controlling the bulk volumetric strain is developed using the data available from various sources in a manner to meet the required endpoint‐limit conditions of the Biot‐Willis coefficient, ranging from zero to unity. The modified power‐law equation presented in this paper yields a ...
Web模型中使用的参数如表2所示, 其中孔隙度、泊松比和Biot-Willis耦合系数α B 值来自Berea 砂岩 。渗透率 κ 数据来自 COMSOL 说明文件 ① (① COMSOL Multiphysics, Co. Ltd., Solved with COMSOL Multiphysics 5.1, … Web此验证模型计算声波在水-沉积物界面的反射系数。均匀波从流体(水)域入射,并 在水-沉积物界面发生反射和透射。根据 Biot 理论,海床域采用“多孔弹性波”接口 进行模拟。其中包含饱和流体中的压力波与多孔基体(沉积物)中的弹性波之间的相 互作用细节。
WebHubbert和Willis[1]在1957年通过三轴压缩实验总结出了H-W模式,Matthews和Kelly[2]在1967年提出的修正H-W模式,引入了骨架应力系数代替经验性的上覆压力系数,但骨架应力系数的使用需要大量的实际压裂资料,因此限制了此方法的应用。 ... Anderson[4]在1973年将Biot弹性多孔 ...
WebFeb 18, 2024 · 摘要: Biot系数是流-固耦合理论的核心参数,但目前缺乏针对特定储层的准确获取Biot系数的推荐方法,为此通过室内试验对比研究了3种可用于中孔中渗砂岩储层的Biot系数测试方法——Cross-plotting法、排水试验法和声波动态法。以胜利油田典型砂岩区块为例,分别从渗透理论、岩石弹性变形特性与声波 ... church of the brethren annual conference 2016Web有效应力系数 播报 编辑 锁定 ... 本词条缺少信息栏、概述图,补充相关内容使词条更完整,还能快速升级,赶紧来编辑吧! Biot弹性常数至于水平主应力,对于构造平缓地区,其主要来源于上覆地层压力和地质构造应力两个部分。 ... church of the brethren ankeny iadewberry senior hockeyhttp://www.xjishu.com/zhuanli/52/202411292081.html dewberry school of musicWebSee Fig. 7 for the dynamic evolution of the Biot stress coefficient based on the Biot-Willis test. In the calculation of the Biot stress coefficient we use Eq. 13 and 14 with a dry plug … dewberry season in texasWebMay 14, 2024 · The Biot–Willis effective stress coefficient associated with the bulk volumetric strain should be correlated with effective porosity because porosity is the primary variable and permeability is a secondary variable which is essentially a function … dewberry servicesWebThe POROUS BULK MODULI option cannot be used with the porous metal plasticity material model. For cohesive elements, this option can be used in conjunction with the ELASTIC, TYPE = TRACTION option to define Biot's coefficient. There are no parameters associated with this option. Data lines to define bulk moduli. Data line for cohesive … dewberry shoes