caa a22 4500 463163001 CHVBK 20180406164753.0 cr unu---uuuuu 170326e20070201xx s 000 0 eng 10.1007/s11242-006-0016-x doi (NATIONALLICENCE)springer-10.1007/s11242-006-0016-x Removal of Particle Bridges From a Porous Material by Ultrasonic Irradiation [Elektronische Daten] [Pietro Poesio, Gijs Ooms] Particle bridge formation during the flow of a liquid with particles through a porous material is a fouling mechanism that can block the pores and, hence, decrease the permeability of the material. Ultrasonic irradiation of the material is a cleaning method that can restore the permeability. We make a numerical study of this cleaning method using the lattice-Boltzmann method. We start from a pore blocked by two spherical particles attached to the pore wall by colloidal adhesion forces, thus forming a particle bridge. Next we calculate the hydrodynamic force exerted by a high-frequency acoustic wave on the two particles. By comparing the hydrodynamic force and the adhesion force we investigate, whether the particle bridge will be removed by the ultrasonic irradiation. A sensitivity study is carried out to investigate the influence of some relevant parameters, such as the acoustic wave amplitude, the acoustic frequency, the fluid flow velocity and the ratio of particle diameter and pore diameter. An upscaling procedure is applied to translate the microscopic results for the removal of the particles at the pore level to the permeability improvement of the material at the macroscopic level. A comparison is made between numerical results and experimental data. The agreement is reasonable. Springer, 2007 porous material nationallicence fluid flow with particles nationallicence permeability reduction nationallicence ultrasonic cleaning nationallicence lattice-Boltzmann method nationallicence Poesio Pietro J.M. Burgerscentrum, Laboratory for Aero- and Hydrodynamics, Delft University of Technology, Mekelweg 2, 2628 CD, Delft, The Netherlands aut Ooms Gijs J.M. Burgerscentrum, Laboratory for Aero- and Hydrodynamics, Delft University of Technology, Mekelweg 2, 2628 CD, Delft, The Netherlands aut Transport in Porous Media Kluwer Academic Publishers 66/3(2007-02-01), 235-257 0169-3913 66:3<235 2007 66 11242 https://doi.org/10.1007/s11242-006-0016-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11242-006-0016-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Poesio Pietro J.M. Burgerscentrum, Laboratory for Aero- and Hydrodynamics, Delft University of Technology, Mekelweg 2, 2628 CD, Delft, The Netherlands aut NATIONALLICENCE 700 1- Ooms Gijs J.M. Burgerscentrum, Laboratory for Aero- and Hydrodynamics, Delft University of Technology, Mekelweg 2, 2628 CD, Delft, The Netherlands aut NATIONALLICENCE 773 0- Transport in Porous Media Kluwer Academic Publishers 66/3(2007-02-01), 235-257 0169-3913 66:3<235 2007 66 11242 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer