GOALI: Direct Numerical Simulation of Slurry Transport Focusing on Engineering Correlations

摘要CTS-0109079D。明尼苏达大学D·约瑟夫提议的努力是明尼苏达大学流体动力学实验室和来自俄克拉何马州邓肯的石油工业支持实验室STIMLAB之间的目标合作。对直接数值模拟技术在泥浆运移和储层裂缝支撑剂运移中的应用进行了探索。在这两种情况下，重点都是确定颗粒和周围液体之间的力相互作用。此外，数值计算还将借助相关的无量纲幂定律参数与实验结果相吻合。这种“关联方法”应该揭示出在传统流体动力学守恒方程中不能立即显现出来的自相似性质。PI对他在这一方向上取得的进展进行了广泛的评估，部分是在NSF的支持下。从简单的泊松流动(Poiseuille Flow)到非常实用的(发泡泡沫塔、沥青泡沫输送……)，各种应用都取得了许多结果。已发展了几个有限元程序(ALE、DLm)，并给出了成功的关联式(其中一些是由其他小组提出的)。在这些丰富的结果中，PI提出了许多关于相互依赖性质的研究扩展：粒子寿命、循环、分叉和悬浮到平衡。给出了PI打算研究的相关性的部分轮廓，以及STIMLAB可以利用其丰富的数据库的更实用类型的问题的简短陈述：支撑剂传输、碰撞模型。

AbstractCTS-0109079D. D. Joseph, University of MinnesotaThe proposed effort is a GOALI association between the University of MinnesotaFluid Dynamics Lab and the oil-industry supported laboratory STIMLAB from Duncan, Oklahoma. It is an attempt to explore the application of the direct numerical simulation technique to slurry transport and also to proppant transport in reservoir fractures. In both cases, the emphasis will be to identify the force interaction between the particles and the ambient liquid. Also, numerical flow field calculations will be fitted to experimental results with the help of relevant non-dimensional power law parameters. This "method of correlations" should reveal self-similar properties not immediately apparent from the traditional conservation equations of fluid dynamics.The PI presents an extensive evaluation of the progress he has already accomplished in that direction, in part with NSF support. Many results have been obtained for a variety of applications, from the simple (Poiseuille flow) to the very applied (foaming bubble columns, bitumen froth transport...). Several finite element codes have been evolved (ALE, DLM), and successful correlations (some of them by other groups) are presented. Out of this abundance of results, the PI has produced a number of proposed research extensions into interdependent properties: particle life off, circulation, bifurcation, and levitation to equilibrium. A partial outline of the correlations which the PI intends to investigate is given, as well as a short statement of the more applied kind of problems where STIMLAB could use its abundant data bank: proppant transport, collision models.