This paper presents a numerical analysis and visualization experiments of a steadystate two-dimensional groundwater flow passing through a borehole with a cylindrical obstacle at its center.In the numerical analysis, Darcy's Law was applied to simulate the flow in porous media, while Navier-Stokes Equations were applied to simulate the flow in the borehole. These equations were discretised with the finite difference method and were solved using the alternative direction implicit method under various flow conditions.The results of numerical analysis were validated with velocity and streamline measurements in laboratory experiments. Effects of Reynolds Number and obstacle sizes on the flow in the borehole were observed in the velocity and streamline profiles. The applicable ranges of the Stokes' Approximation in the Navier-Stokes Equation were also investigated through the numerical analysis.
|Title of host publication||26th International Symposium on Application of Computers and Operations Research in the Mineral Industry (APCOM) (State College, Pennsylvania, USA)|
|Publisher||Society for Mining, Metallurgy, and Exploration, Inc.|
|Number of pages||6|
|Publication status||Published - Sep 1996|
All Science Journal Classification (ASJC) codes
- Earth and Planetary Sciences(all)
- Fluid Flow and Transfer Processes
Akibayash, S., Sasaki, K., Wei, Q., & Murakami, T. (1996). Numerical analysis of groundwater flow in a bore hole with a cylindrical obstacle: Basic relationship for measurement of seepage flow velocity. In R. V. Ramani (Ed.), 26th International Symposium on Application of Computers and Operations Research in the Mineral Industry (APCOM) (State College, Pennsylvania, USA) (pp. 203-208). Society for Mining, Metallurgy, and Exploration, Inc..