2 edition of Computer and experimental studies of dynamic processes in porous media found in the catalog.
Thesis (Ph.D)-University of Birmingham, School of Physics and Space Research, 1991.
|Statement||University of Birmingham|
|Publishers||University of Birmingham|
|The Physical Object|
|Pagination||xvi, 101 p. :|
|Number of Pages||82|
nodata File Size: 2MB.
Hence, a direct inversion of Eq. It is important to mention, that there is no projected velocity at the wall particles when the pressure Poisson equation is solved Eq.
Working with simulated data enables quantitative comparisons between the different reconstruction methods since we have the ground truth. This would also make it possible to account for the time it takes for the gantry to rotate the sample which is negligible in our local CT scanner but considerable in other CT scanners. Written by the recent directors of the NATO Advanced Study Institute session on 'Emerging Technologies and Techniques in Porous Media' June 2003this book is a timely and essential reference for scientists and engineers within a variety of fields.
All steps in the first stage are performed while the core is in a vertical position. Stopping criteria A general problem associated with iterative reconstruction methods is to determine when the optimal solution is obtained. One image was taken in each relaxed condition, and the current pressure in the reservoir was measured. For incompressible fluids, the continuity equation simplifies to 2 Implementation in SPH We chose the SPH method because of its mesh-free nature.
Fast laboratory-based micro-computed tomography for pore-scale research: Illustrative experiments and perspectives on the future. Hitti K, Bernacki M 2013 Optimized dropping and rolling ODR method for packing of poly-disperse spheres. We use the high-quality scan to initialise the first time step of the dynamic reconstruction. For the present case, this means a lower limit of 0 and an upper limit of 2. Li H, Fang X, Li G, Zhou G, Tang Y 2018 Investigation on fabrication and capillary performance of multi-scale composite porous wick made by alloying-dealloying method.
J Colloid Interface Sci 397:169—176• Moreover, the European Industry needs to undertake research and technological initiatives in response to humanity's "Grand Challenges," described in the declaration of Lund, namely, Global Warming, Tightening Supplies of Energy, Water and Food, Ageing Societies, Public Health, Pandemics and Security. This means that thousands of low noise radiographs are needed to provide high-quality 3D reconstructions, eventually leading to high scan times — often in the order of hours.
The book is divided in several chapters that intend to be a resume of the current state of knowledge for benefit of related professionals and scientists. The interface between the rock and fluid was smeared using a Gaussian filter to emulate partial volume effects, i.
Computational Tomography CT imaging is employed to visualize the transient CO 2 foam sweep process and the dual-energy CT measurement is performed to obtain the dynamic three phase saturation distributions along the sample core.
On the basis of microscopic visualization experiments of the heavy oil from Orinoco Belt in Venezuela, effects of the pressure depletion rate and temperature on foamy oil microflow characteristics were researched.
For both, simulation and experiment, the interfacial area and the pressure at the inflow and outflow are tracked.
The low photon flux of laboratory instruments leads to a compromise between image quality and the temporal resolution.