%0 Generic %1 karadimitriou2011twophase %A Karadimitriou, N. K. %A Hassanizadeh, S. M. %A Kleingeld, P. J. %D 2011 %K mib mib_ls2 %T Two-phase flow experimental studies using micro-models; Comparison between experiment and numerical model %X In order to investigate the significance of incorporating interfacial area as a separate variable in the governing equations of two-phase flow, an experimental setup was constructed to study and visualize two-phase flow in a micro-model under quasi-static and dynamic conditions. In this setup, a combination of lenses, three beam splitters and four cameras were used to visualize flow in a two-dimensional micro-model. PDMS micro-models with 2000, 3000 and 6000 pore bodies and 6000, 9000 and 20000 throats respectively, were used. The mean pore size of the flow-network varied between 40 μm, 50 μm and 70 μm. The mean depth of the micro-models was kept close to their mean pore size. The size of the flow network was 5 mm x 35 mm in all micro-models. With the use of four identical cameras equipped with CCD sensors, visualization of the distribution of phases in the micro-models took place. The effective area that has been visualized was 5 mm x 30 mm. Given the overall size and the pixel size of the camera's sensor, a resolution of 2.8 μm per pixel at any given instant has been obtained. This resolution ensured that there would be enough pixels to accurately visualize the distribution of phases in the flow network. The design of the flow network as well as the simulation of the experiments had been modeled using pore-network modeling. After performing drainage and imbibition experiments under quasi-static conditions the results obtained were compared to the modeling results in order to calibrate the numerical model.

@conference{karadimitriou2011twophase, abstract = {In order to investigate the significance of incorporating interfacial area as a separate variable in the governing equations of two-phase flow, an experimental setup was constructed to study and visualize two-phase flow in a micro-model under quasi-static and dynamic conditions. In this setup, a combination of lenses, three beam splitters and four cameras were used to visualize flow in a two-dimensional micro-model. PDMS micro-models with 2000, 3000 and 6000 pore bodies and 6000, 9000 and 20000 throats respectively, were used. The mean pore size of the flow-network varied between 40 μm, 50 μm and 70 μm. The mean depth of the micro-models was kept close to their mean pore size. The size of the flow network was 5 mm x 35 mm in all micro-models. With the use of four identical cameras equipped with CCD sensors, visualization of the distribution of phases in the micro-models took place. The effective area that has been visualized was 5 mm x 30 mm. Given the overall size and the pixel size of the camera's sensor, a resolution of 2.8 μm per pixel at any given instant has been obtained. This resolution ensured that there would be enough pixels to accurately visualize the distribution of phases in the flow network. The design of the flow network as well as the simulation of the experiments had been modeled using pore-network modeling. After performing drainage and imbibition experiments under quasi-static conditions the results obtained were compared to the modeling results in order to calibrate the numerical model. }, added-at = {2020-01-15T17:39:31.000+0100}, author = {Karadimitriou, N. K. and Hassanizadeh, S. M. and Kleingeld, P. J.}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2c5533b48a6df26cda853fd52642c7741/nkaradimitriou}, interhash = {07278cc3c8b3b7700887225955c054c8}, intrahash = {c5533b48a6df26cda853fd52642c7741}, keywords = {mib mib_ls2}, organization = {American Geophysical Union, Fall Meeting 2011}, timestamp = {2020-01-15T16:39:31.000+0100}, title = {Two-phase flow experimental studies using micro-models; Comparison between experiment and numerical model }, year = 2011 }